diff --git a/src/main/java/me/towdium/jecalculation/algorithm/CostList.java b/src/main/java/me/towdium/jecalculation/algorithm/CostList.java
index de01d44..85f8341 100644
--- a/src/main/java/me/towdium/jecalculation/algorithm/CostList.java
+++ b/src/main/java/me/towdium/jecalculation/algorithm/CostList.java
@@ -8,6 +8,8 @@ import me.towdium.jecalculation.utils.wrappers.Pair;
 import java.util.*;
 import java.util.stream.Collectors;
 
+import static me.towdium.jecalculation.data.structure.Recipe.enumIoType.OUTPUT;
+
 public class CostList {
     List<ILabel> labels;
 
@@ -15,31 +17,40 @@ public class CostList {
         labels = new ArrayList<>();
     }
 
+    public CostList(ILabel label) {
+        labels = Collections.singletonList(label.copy().multiply(-1));
+    }
+
     public CostList(List<ILabel> labels) {
-        this.labels = labels.stream().map(ILabel::copy).collect(Collectors.toList());
+        this.labels = labels.stream().map(i -> i.copy().multiply(-1)).collect(Collectors.toList());
     }
 
     public CostList(List<ILabel> positive, List<ILabel> negative) {
         labels = positive.stream().map(ILabel::copy).collect(Collectors.toList());
         negative.forEach(i -> {
             ILabel l = i.copy();
-            labels.add(l.invertAmount());
+            labels.add(l.multiply(-1));
         });
     }
 
     public CostList(Recipe recipe) {
-        this(Arrays.asList(recipe.getLabel(Recipe.enumIoType.OUTPUT)),
-             Arrays.asList(recipe.getLabel(Recipe.enumIoType.INPUT)));
+        this(Arrays.stream(recipe.getLabel(OUTPUT)).filter(i -> i != ILabel.EMPTY).collect(Collectors.toList()),
+             Arrays.stream(recipe.getLabel(Recipe.enumIoType.INPUT)).filter(i -> i != ILabel.EMPTY)
+                   .collect(Collectors.toList()));
     }
 
     @SuppressWarnings("UnusedReturnValue")
     public CostList merge(CostList costList, boolean add, boolean strict) {
         CostList ret = copy();
-        costList.labels.forEach(i -> ret.labels.add(add ? i.copy() : i.copy().invertAmount()));
+        costList.labels.forEach(i -> ret.labels.add(add ? i.copy() : i.copy().multiply(-1)));
         ret.cancel(strict);
         return ret;
     }
 
+    public void multiply(int i) {
+        labels = labels.stream().map(j -> j.multiply(i)).collect(Collectors.toList());
+    }
+
     private void cancel(boolean strict) {
         for (int i = 0; i < labels.size(); i++) {
             for (int j = 0; j < labels.size(); j++) {
@@ -70,7 +81,8 @@ public class CostList {
             CostList c = (CostList) obj;
             CostList m = c.copy();
             return m.merge(this, false, true).labels.isEmpty();
-        } else return false;
+        } else
+            return false;
     }
 
     public CostList copy() {
@@ -90,7 +102,7 @@ public class CostList {
 
 
     public Calculator calculate() {
-        return new Calculator(this);
+        return new Calculator();
     }
 
     @Override
@@ -101,33 +113,32 @@ public class CostList {
         return hash;
     }
 
-    public static class Calculator {
-        CostList start;
-        ArrayList<Pair<CostList, CostList>> procedure;
-        List<ILabel> catalysts;
+    public class Calculator {
+        ArrayList<Pair<CostList, CostList>> procedure = new ArrayList<>();
+        ArrayList<ILabel> catalysts = new ArrayList<>();
         private int index;
 
-        public Calculator(CostList cl) {
+        public Calculator() {
             HashSet<CostList> set = new HashSet<>();
-            start = cl;
-            set.add(start);
-            Recipe next = find(true);
+            set.add(CostList.this);
+            Pair<Recipe, Integer> next = find(true);
             while (next != null) {
                 CostList original = getCurrent();
-                CostList difference = new CostList(next);
-                CostList result = original.merge(difference, false, false);
+                CostList difference = new CostList(next.one);
+                difference.multiply(next.two);
+                CostList result = original.merge(difference, true, false);
                 if (set.contains(result))
                     next = find(false);
                 else {
                     set.add(result);
                     procedure.add(new Pair<>(result, difference));
-                    addCatalyst(next.getLabel(Recipe.enumIoType.CATALYST));
+                    addCatalyst(next.one.getLabel(Recipe.enumIoType.CATALYST));
                     next = find(true);
                 }
             }
         }
 
-        private Recipe find(boolean reset) {
+        private Pair<Recipe, Integer> find(boolean reset) {
             if (reset)
                 index = 0;
             List<ILabel> labels = getCurrent().labels;
@@ -135,9 +146,9 @@ public class CostList {
                 ILabel label = labels.get(index);
                 if (label.getAmount() >= 0)
                     continue;
-                Optional<Recipe> recipe = Controller.getRecipe(label, Recipe.enumIoType.OUTPUT);
+                Optional<Recipe> recipe = Controller.getRecipe(label, OUTPUT);
                 if (recipe.isPresent())
-                    return recipe.get();
+                    return new Pair<>(recipe.get(), recipe.get().multiplier(label, OUTPUT));
             }
             return null;
         }
@@ -147,7 +158,7 @@ public class CostList {
             for (ILabel i : labels) {
                 for (ILabel j : catalysts) {
                     if (j.matches(i)) {
-                        j.setAmount(j.getAmount() + i.getAmount());
+                        j.setAmount(Math.max(i.getAmount(), j.getAmount()));
                         continue LOOP;
                     }
                 }
@@ -156,7 +167,16 @@ public class CostList {
         }
 
         private CostList getCurrent() {
-            return procedure.isEmpty() ? start : procedure.get(procedure.size() - 1).one;
+            return procedure.isEmpty() ? CostList.this : procedure.get(procedure.size() - 1).one;
+        }
+
+        public List<ILabel> getCatalysts() {
+            return catalysts;
+        }
+
+        public List<ILabel> getInputs() {
+            return getCurrent().labels.stream().filter(i -> i.getAmount() < 0).map(i -> i.copy().multiply(-1))
+                                      .collect(Collectors.toList());
         }
     }
 }
diff --git a/src/main/java/me/towdium/jecalculation/data/Controller.java b/src/main/java/me/towdium/jecalculation/data/Controller.java
index 2968e93..3322da3 100644
--- a/src/main/java/me/towdium/jecalculation/data/Controller.java
+++ b/src/main/java/me/towdium/jecalculation/data/Controller.java
@@ -27,7 +27,7 @@ import java.util.stream.Collectors;
  * Date:   17-10-15.
  */
 @SideOnly(Side.CLIENT)
-public class Controller {
+public class Controller { // TODO record calculate amount
     public static final String KEY_RECIPES = "recipes";
     public static final String KEY_RECENTS = "recents";
     static Recipes recipesClient;
diff --git a/src/main/java/me/towdium/jecalculation/data/label/ILabel.java b/src/main/java/me/towdium/jecalculation/data/label/ILabel.java
index ed5556d..0107f80 100644
--- a/src/main/java/me/towdium/jecalculation/data/label/ILabel.java
+++ b/src/main/java/me/towdium/jecalculation/data/label/ILabel.java
@@ -2,16 +2,21 @@ package me.towdium.jecalculation.data.label;
 
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
-import me.towdium.jecalculation.data.label.labels.*;
+import me.towdium.jecalculation.data.label.labels.LFluidStack;
+import me.towdium.jecalculation.data.label.labels.LItemStack;
+import me.towdium.jecalculation.data.label.labels.LOreDict;
+import me.towdium.jecalculation.data.label.labels.LPlaceholder;
 import me.towdium.jecalculation.gui.IWPicker;
 import me.towdium.jecalculation.gui.JecaGui;
-import me.towdium.jecalculation.gui.guis.pickers.PickerSimple;
+import me.towdium.jecalculation.gui.guis.pickers.PickerItemStack;
 import me.towdium.jecalculation.gui.guis.pickers.PickerPlaceholder;
+import me.towdium.jecalculation.gui.guis.pickers.PickerSimple;
 import me.towdium.jecalculation.polyfill.mc.client.renderer.GlStateManager;
 import me.towdium.jecalculation.utils.Utilities;
 import me.towdium.jecalculation.utils.Utilities.Relation;
 import me.towdium.jecalculation.utils.Utilities.ReversedIterator;
 import me.towdium.jecalculation.utils.wrappers.Pair;
+import net.minecraft.init.Items;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraftforge.fluids.FluidRegistry;
@@ -19,7 +24,10 @@ import net.minecraftforge.fluids.FluidStack;
 
 import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Optional;
 import java.util.function.Function;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
@@ -44,19 +52,26 @@ public interface ILabel {
 
     ILabel decreaseAmount();
 
-    ILabel invertAmount();
-
-    int getAmount();
-
     static void initClient() {
         CONVERTER.register(LOreDict::guess);
         EDITOR.register(PickerSimple.FluidStack::new, "fluid_stack", new LFluidStack(1000, FluidRegistry.WATER));
         EDITOR.register(PickerSimple.OreDict::new, "ore_dict", new LOreDict("ingotIron"));
         EDITOR.register(PickerPlaceholder::new, "placeholder", new LPlaceholder("example", 1, true));
+        EDITOR.register(PickerItemStack::new, "item_stack",
+                        new LItemStack(new ItemStack(Items.iron_pickaxe)).setFMeta(true));
         MERGER.register("itemStack", "itemStack", LItemStack::merge);
-        MERGER.register("oreDict", "oreDict", LOreDict::mergeOreDict);
+        MERGER.register("oreDict", "oreDict", LOreDict::merge);
+        MERGER.register("itemStack", "oreDict", LOreDict::merge);
     }
 
+    int getAmount();
+
+    ILabel multiply(int i);
+
+    boolean acceptPercent();
+
+    ILabel setPercent(boolean p);
+
     static void initServer() {
         DESERIALIZER.register(LFluidStack.IDENTIFIER, LFluidStack::new);
         DESERIALIZER.register(LItemStack.IDENTIFIER, LItemStack::new);
@@ -79,6 +94,7 @@ public interface ILabel {
 
     ILabel setAmount(int amount);
 
+    // test two labels are exactly same except amount
     boolean matches(Object l);
 
     @SideOnly(Side.CLIENT)
@@ -170,14 +186,23 @@ public interface ILabel {
         }
     }
 
+    /**
+     * Provides support to convert between different types of labels.
+     * For example, guess oreDict from list of labels.
+     * It can also convert ItemStack or FluidStack to ILabel
+     */
     class Converter {
         ArrayList<Function<List<ILabel>, List<ILabel>>> handlers = new ArrayList<>();
 
         public static ILabel from(@Nullable Object o) {
-            if (o == null) return ILabel.EMPTY;
-            else if (o instanceof ItemStack) return new LItemStack((ItemStack) o);
-            else if (o instanceof FluidStack) return new LFluidStack((FluidStack) o);
-            else throw new RuntimeException("Unrecognized ingredient type: " + o.getClass());
+            if (o == null)
+                return ILabel.EMPTY;
+            else if (o instanceof ItemStack)
+                return new LItemStack((ItemStack) o);
+            else if (o instanceof FluidStack)
+                return new LFluidStack((FluidStack) o);
+            else
+                throw new RuntimeException("Unrecognized ingredient type: " + o.getClass());
         }
 
         public void register(Function<List<ILabel>, List<ILabel>> handler) {
@@ -246,10 +271,20 @@ public interface ILabel {
         }
 
         @Override
-        public ILabel invertAmount() {
+        public ILabel multiply(int i) {
             return this;
         }
 
+        @Override
+        public boolean acceptPercent() {
+            return false;
+        }
+
+        @Override
+        public ILabel setPercent(boolean p) {
+            throw new UnsupportedOperationException();
+        }
+
         @Override
         public int getAmount() {
             return 0;
@@ -296,7 +331,9 @@ public interface ILabel {
 
     abstract class Impl implements ILabel {
         public static final String KEY_AMOUNT = "amount";
+        public static final String KEY_PERCENT = "percent";
         protected int amount;
+        protected boolean percent;
 
         @Override
         public String toString() {
@@ -305,14 +342,17 @@ public interface ILabel {
 
         public Impl(int amount) {
             this.amount = amount;
+            percent = false;
         }
 
         public Impl(Impl lsa) {
-            this(lsa.amount);
+            amount = lsa.amount;
+            percent = lsa.percent;
         }
 
         public Impl(NBTTagCompound nbt) {
             amount = nbt.getInteger(KEY_AMOUNT);
+            percent = nbt.getBoolean(KEY_PERCENT);
         }
 
         protected int getMultiplier() {
@@ -335,7 +375,8 @@ public interface ILabel {
 
         @Override
         public ILabel decreaseAmount() {
-            if (getAmount() <= getMultiplier()) return ILabel.EMPTY;
+            if (getAmount() <= getMultiplier())
+                return ILabel.EMPTY;
             else {
                 setAmount(getAmount() - getMultiplier());
                 return this;
@@ -343,23 +384,32 @@ public interface ILabel {
         }
 
         @Override
-        public ILabel invertAmount() {
-            setAmount(-getAmount());
+        public ILabel multiply(int i) {
+            setAmount(i * getAmount());
             return this;
         }
 
         @Override
         @SideOnly(Side.CLIENT)
         public void getToolTip(List<String> existing, boolean detailed) {
-            if (detailed) existing.add(FORMAT_GREY +
-                                       Utilities.I18n.format("label.common.tooltip.amount", getAmountString()));
+            if (detailed)
+                existing.add(FORMAT_GREY + Utilities.I18n.format("label.common.tooltip.amount", getAmountString()));
         }
 
-        @Override
-        public NBTTagCompound toNBTTagCompound() {
-            NBTTagCompound nbt = new NBTTagCompound();
-            nbt.setInteger(KEY_AMOUNT, amount);
-            return nbt;
+        protected static Optional<ILabel> merge(Impl a, Impl b, boolean add) {
+            Impl ret = a.copy();
+            boolean p = a.percent || b.percent;
+            int amountA = a.amount;
+            int amountB = b.amount;
+            if (p) {
+                if (!a.percent)
+                    amountA *= 100;
+                if (!b.percent)
+                    amountB *= 100;
+            }
+            ret.amount = add ? amountA + amountB : amountA - amountB;
+            ret.percent = p;
+            return Optional.of(ret.amount == 0 ? ILabel.EMPTY : ret);
         }
 
         @Override
@@ -369,15 +419,36 @@ public interface ILabel {
 
         @Override
         public ILabel setAmount(int amount) {
-            if (amount == 0) return ILabel.EMPTY;
+            if (amount == 0)
+                return ILabel.EMPTY;
             this.amount = amount;
             return this;
         }
 
         @Override
-        @SideOnly(Side.CLIENT)
-        public String getAmountString() {
-            return getAmount() == 0 ? "" : Utilities.cutNumber(getAmount(), 5);
+        public NBTTagCompound toNBTTagCompound() {
+            NBTTagCompound nbt = new NBTTagCompound();
+            nbt.setInteger(KEY_AMOUNT, amount);
+            nbt.setBoolean(KEY_PERCENT, percent);
+            return nbt;
+        }
+
+        @Override
+        public boolean acceptPercent() {
+            return true;
+        }
+
+        public ILabel setPercent(boolean p) {
+            if (!acceptPercent())
+                throw new UnsupportedOperationException();
+            if (p && !percent) {
+                amount *= 100;
+                percent = true;
+            } else if (!p && percent) {
+                amount = (amount + 99) / 100;
+                percent = false;
+            }
+            return this;
         }
 
         @Override
@@ -385,6 +456,22 @@ public interface ILabel {
             return obj instanceof Impl && amount == ((Impl) obj).amount && matches(obj);
         }
 
+        @Override
+        @SideOnly(Side.CLIENT)
+        public String getAmountString() {
+            return getAmount() == 0 ?
+                   "" :
+                   (percent ? Utilities.cutNumber(getAmount(), 4) + "%" : Utilities.cutNumber(getAmount(), 5));
+        }
+
+        @Override
+        abstract public Impl copy();
+
+        @Override
+        public boolean matches(Object l) {
+            return l instanceof Impl && percent == ((Impl) l).percent;
+        }
+
         abstract protected void drawLabel(JecaGui gui);
     }
 }
diff --git a/src/main/java/me/towdium/jecalculation/data/label/labels/LFluidStack.java b/src/main/java/me/towdium/jecalculation/data/label/labels/LFluidStack.java
index 051dfc5..0218d03 100644
--- a/src/main/java/me/towdium/jecalculation/data/label/labels/LFluidStack.java
+++ b/src/main/java/me/towdium/jecalculation/data/label/labels/LFluidStack.java
@@ -30,6 +30,11 @@ public class LFluidStack extends ILabel.Impl {
     NBTTagCompound nbt;
     FluidStack temp;
 
+    @Override
+    public boolean acceptPercent() {
+        return false;
+    }
+
     public LFluidStack(FluidStack fs) {
         this(fs.amount, fs.getFluid(), fs.tag);
     }
@@ -88,7 +93,7 @@ public class LFluidStack extends ILabel.Impl {
     }
 
     @Override
-    public ILabel copy() {
+    public LFluidStack copy() {
         return new LFluidStack(this);
     }
 
diff --git a/src/main/java/me/towdium/jecalculation/data/label/labels/LItemStack.java b/src/main/java/me/towdium/jecalculation/data/label/labels/LItemStack.java
index b700b36..cde1aa7 100644
--- a/src/main/java/me/towdium/jecalculation/data/label/labels/LItemStack.java
+++ b/src/main/java/me/towdium/jecalculation/data/label/labels/LItemStack.java
@@ -4,11 +4,11 @@ import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 import me.towdium.jecalculation.data.label.ILabel;
 import me.towdium.jecalculation.gui.JecaGui;
+import me.towdium.jecalculation.gui.Resource;
 import me.towdium.jecalculation.utils.Utilities;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
-import net.minecraftforge.oredict.OreDictionary;
 
 import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
@@ -16,6 +16,8 @@ import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
 
+import static net.minecraftforge.oredict.OreDictionary.WILDCARD_VALUE;
+
 /**
  * Author: towdium
  * Date:   8/11/17.
@@ -26,10 +28,17 @@ public class LItemStack extends ILabel.Impl {
     public static final String KEY_ITEM = "item";
     public static final String KEY_META = "meta";
     public static final String KEY_NBT = "nbt";
+    public static final String KEY_FUZZY = "fuzzy";
+    public static final byte FUZZY_META = 0x1;
+    public static final byte FUZZY_CAP = 0x2;
+    public static final byte FUZZY_NBT = 0x4;
 
     Item item;
     int meta;
     NBTTagCompound nbt;
+    boolean fMeta;
+    boolean fNbt;
+    boolean fCap;
     transient ItemStack temp;
 
     public LItemStack(int amount, Item item, int meta, @Nullable NBTTagCompound nbt) {
@@ -49,6 +58,7 @@ public class LItemStack extends ILabel.Impl {
     public LItemStack(NBTTagCompound nbt) {
         this(nbt.getInteger(KEY_AMOUNT), Objects.requireNonNull(Item.getItemById(nbt.getInteger(KEY_ITEM))),
              nbt.getInteger(KEY_META), nbt.hasKey(KEY_NBT) ? nbt.getCompoundTag(KEY_NBT) : null);
+        fromFuzzy(nbt.getByte(KEY_FUZZY));
     }
 
     private LItemStack(LItemStack lis) {
@@ -65,18 +75,44 @@ public class LItemStack extends ILabel.Impl {
         if (a instanceof LItemStack && b instanceof LItemStack) {
             LItemStack lisA = (LItemStack) a;
             LItemStack lisB = (LItemStack) b;
-            boolean wildcard = lisA.meta == OreDictionary.WILDCARD_VALUE || lisB.meta == OreDictionary.WILDCARD_VALUE;
-            if ((Objects.equals(lisA.nbt, lisB.nbt)) && (lisA.meta == lisB.meta || wildcard)) {
-                LItemStack ret = new LItemStack(lisA);
-                if (wildcard)
-                    ret.meta = OreDictionary.WILDCARD_VALUE;
-                ret.amount = add ? lisA.amount + lisB.amount : lisA.amount - lisB.amount;
-                return Optional.of(ret.amount == 0 ? ILabel.EMPTY : ret);
+
+            // check meta
+            int resultMeta = 0;
+            boolean checkedMeta = true;
+            if (lisA.meta == WILDCARD_VALUE || lisB.meta == WILDCARD_VALUE)
+                resultMeta = WILDCARD_VALUE;
+            else if (lisA.fMeta || lisB.fMeta || lisA.meta == lisB.meta)
+                resultMeta = lisA.meta;
+            else
+                checkedMeta = false;
+
+            // check nbt and cap
+            boolean checkedNbt = (Objects.equals(lisA.nbt, lisB.nbt)) || lisA.fNbt || lisB.fNbt;
+
+            if (lisA.item == lisB.item && checkedMeta && checkedNbt) {
+                LItemStack is = lisA.copy();
+                is.meta = resultMeta;
+                return Impl.merge(is, lisB, add);
             }
         }
         return Optional.empty();
     }
 
+    public ILabel setFMeta(boolean f) {
+        fMeta = f;
+        return this;
+    }
+
+    public ILabel setFNbt(boolean f) {
+        fNbt = f;
+        return this;
+    }
+
+    public ILabel setFCap(boolean f) {
+        fCap = f;
+        return this;
+    }
+
     public ItemStack getRep() {
         return temp;
     }
@@ -103,13 +139,15 @@ public class LItemStack extends ILabel.Impl {
     public boolean matches(Object l) {
         if (l instanceof LItemStack) {
             LItemStack lis = (LItemStack) l;
-            return (Objects.equals(nbt, lis.nbt)) && meta == lis.meta && item == lis.item;
+            return (Objects.equals(nbt, lis.nbt)) && meta == lis.meta && item == lis.item
+                   && fNbt == lis.fNbt && super.matches(l)
+                   && fCap == lis.fCap && fMeta == lis.fMeta;
         } else
             return false;
     }
 
     @Override
-    public ILabel copy() {
+    public LItemStack copy() {
         return new LItemStack(this);
     }
 
@@ -123,13 +161,28 @@ public class LItemStack extends ILabel.Impl {
         ret.setInteger(KEY_ITEM, id);
         if (nbt != null)
             ret.setTag(KEY_NBT, nbt);
+        ret.setByte(KEY_FUZZY, toFuzzy());
         return ret;
     }
 
+    private byte toFuzzy() {
+        return (byte) ((fMeta ? FUZZY_META : 0) | (fCap ? FUZZY_CAP : 0) | (fNbt ? FUZZY_NBT : 0));
+    }
+
+    private void fromFuzzy(byte i) {
+        fMeta = (i & FUZZY_META) != 0;
+        fCap = (i & FUZZY_CAP) != 0;
+        fNbt = (i & FUZZY_NBT) != 0;
+    }
+
     @Override
     @SideOnly(Side.CLIENT)
     public void drawLabel(JecaGui gui) {
         gui.drawItemStack(0, 0, temp, false);
+        if (fCap || fNbt || fMeta) gui.drawResource(Resource.LBL_FRAME, 0, 0);
+        if (fCap) gui.drawResource(Resource.LBL_FR_LL, 0, 0);
+        if (fNbt) gui.drawResource(Resource.LBL_FR_UL, 0, 0);
+        if (fMeta) gui.drawResource(Resource.LBL_FR_UR, 0, 0);
     }
 
     @Override
diff --git a/src/main/java/me/towdium/jecalculation/data/label/labels/LOreDict.java b/src/main/java/me/towdium/jecalculation/data/label/labels/LOreDict.java
index 9bd78da..af7a0a5 100644
--- a/src/main/java/me/towdium/jecalculation/data/label/labels/LOreDict.java
+++ b/src/main/java/me/towdium/jecalculation/data/label/labels/LOreDict.java
@@ -59,13 +59,27 @@ public class LOreDict extends ILabel.Impl {
         return Utilities.I18n.format("label.ore_dict.name", name);
     }
 
-    public static Optional<ILabel> mergeOreDict(ILabel a, ILabel b, boolean add) {
+    public static Optional<ILabel> merge(ILabel a, ILabel b, boolean add) {
         if (a instanceof LOreDict && b instanceof LOreDict) {
             LOreDict lodA = (LOreDict) a;
             LOreDict lodB = (LOreDict) b;
-            if (lodA.getName().equals(lodB.getName()))
-                return Optional.of(new LOreDict(lodA.getName(),
-                                                add ? lodA.getAmount() + lodB.getAmount() : lodA.getAmount() - lodB.getAmount()));
+            if (lodA.getName().equals(lodB.getName())) {
+                return Impl.merge(lodA, lodB, add);
+            }
+        } else if ((a instanceof LOreDict && b instanceof LItemStack)
+                   || a instanceof LItemStack && b instanceof LOreDict) {
+            LItemStack lis;
+            LOreDict lor;
+            if (a instanceof LOreDict) {
+                lis = (LItemStack) b;
+                lor = (LOreDict) a;
+            } else {
+                lis = (LItemStack) a;
+                lor = (LOreDict) b;
+            }
+            return OreDictionary.getOres(lor.name).stream().map(o -> Converter.from(o).multiply(lor.amount))
+                                .map(i -> LItemStack.merge(i, lis, add)).filter(Optional::isPresent)
+                                .findAny().flatMap(i -> i);
         }
         return Optional.empty();
     }
@@ -126,7 +140,7 @@ public class LOreDict extends ILabel.Impl {
 
     @Override
     public boolean matches(Object l) {
-        return l instanceof LOreDict && name.equals(((LOreDict) l).name);
+        return l instanceof LOreDict && name.equals(((LOreDict) l).name) && super.matches(l);
     }
 
     @Override
@@ -145,7 +159,7 @@ public class LOreDict extends ILabel.Impl {
         });
         if(list.isEmpty()) return;
         long index = System.currentTimeMillis() / 1500;
-        gui.drawResource(Resource.LBL_ORE_DICT, 0, 0);
+        gui.drawResource(Resource.LBL_FRAME, 0, 0);
         GlStateManager.pushMatrix();
         GlStateManager.translate(1, 1, 0);
         GlStateManager.scale(14f / 16, 14f / 16, 1);
diff --git a/src/main/java/me/towdium/jecalculation/data/label/labels/LPlaceholder.java b/src/main/java/me/towdium/jecalculation/data/label/labels/LPlaceholder.java
index 49e0646..13898fe 100644
--- a/src/main/java/me/towdium/jecalculation/data/label/labels/LPlaceholder.java
+++ b/src/main/java/me/towdium/jecalculation/data/label/labels/LPlaceholder.java
@@ -90,11 +90,11 @@ public class LPlaceholder extends ILabel.Impl {
 
     @Override
     public boolean matches(Object l) {
-        return l instanceof LPlaceholder && name.equals(((LPlaceholder) l).name);
+        return l instanceof LPlaceholder && name.equals(((LPlaceholder) l).name) && super.matches(l);
     }
 
     @Override
-    public ILabel copy() {
+    public LPlaceholder copy() {
         return new LPlaceholder(this);
     }
 
diff --git a/src/main/java/me/towdium/jecalculation/data/label/labels/LString.java b/src/main/java/me/towdium/jecalculation/data/label/labels/LString.java
deleted file mode 100644
index 1f0d341..0000000
--- a/src/main/java/me/towdium/jecalculation/data/label/labels/LString.java
+++ /dev/null
@@ -1,78 +0,0 @@
-package me.towdium.jecalculation.data.label.labels;
-
-import cpw.mods.fml.relauncher.Side;
-import cpw.mods.fml.relauncher.SideOnly;
-import me.towdium.jecalculation.gui.JecaGui;
-import me.towdium.jecalculation.gui.Resource;
-import me.towdium.jecalculation.data.label.ILabel;
-import me.towdium.jecalculation.utils.Utilities;
-import net.minecraft.nbt.NBTTagCompound;
-
-import javax.annotation.ParametersAreNonnullByDefault;
-
-/**
- * Author: towdium
- * Date:   17-9-28.
- */
-@ParametersAreNonnullByDefault
-public class LString extends ILabel.Impl {
-    public static final String KEY_NAME = "name";
-    public static final String IDENTIFIER = "string";
-
-    String name;
-
-    public LString(NBTTagCompound tag) {
-        super(tag);
-        this.name = tag.getString(KEY_NAME);
-    }
-
-    public LString(String name, int amount) {
-        super(amount);
-        this.name = name;
-    }
-
-    public LString(LString label) {
-        super(label);
-        name = label.name;
-    }
-
-    @Override
-    @SideOnly(Side.CLIENT)
-    public String getDisplayName() {
-        return Utilities.I18n.format("label.universal.name", name);
-    }
-
-    @Override
-    public String getIdentifier() {
-        return "string";
-    }
-
-    @Override
-    public boolean matches(Object l) {
-        return l instanceof LString && name.equals(((LString) l).name);
-    }
-
-    @Override
-    public ILabel copy() {
-        return new LString(this);
-    }
-
-    @Override
-    public NBTTagCompound toNBTTagCompound() {
-        NBTTagCompound nbt = super.toNBTTagCompound();
-        nbt.setString(KEY_NAME, name);
-        return nbt;
-    }
-
-    @Override
-    @SideOnly(Side.CLIENT)
-    public void drawLabel(JecaGui gui) {
-        gui.drawResource(Resource.LBL_UNIV_B, 0, 0);
-        gui.drawResource(Resource.LBL_UNIV_F, 0, 0, (name.hashCode() * 0x131723) & 0xFFFFFF);
-    }
-
-    @Override
-    public int hashCode() {
-        return name.hashCode() ^ amount;
-    }
-}
diff --git a/src/main/java/me/towdium/jecalculation/data/structure/Recipe.java b/src/main/java/me/towdium/jecalculation/data/structure/Recipe.java
index 82e3706..b146b7d 100644
--- a/src/main/java/me/towdium/jecalculation/data/structure/Recipe.java
+++ b/src/main/java/me/towdium/jecalculation/data/structure/Recipe.java
@@ -109,6 +109,11 @@ public class Recipe {
         return Arrays.stream(getLabel(type)).anyMatch(i -> ILabel.MERGER.merge(label, i, true).isPresent());
     }
 
+    public int multiplier(ILabel label, enumIoType type) {
+        return Arrays.stream(getLabel(type)).filter(i -> ILabel.MERGER.merge(label, i, true).isPresent()).findAny()
+                     .map(i -> (i.getAmount() + Math.abs(label.getAmount()) - 1) / i.getAmount()).orElse(0);
+    }
+
     public enum enumIoType {
         INPUT, OUTPUT, CATALYST;
 
diff --git a/src/main/java/me/towdium/jecalculation/gui/Resource.java b/src/main/java/me/towdium/jecalculation/gui/Resource.java
index 8ec7a34..ca4c4ab 100644
--- a/src/main/java/me/towdium/jecalculation/gui/Resource.java
+++ b/src/main/java/me/towdium/jecalculation/gui/Resource.java
@@ -16,40 +16,57 @@ import javax.annotation.ParametersAreNonnullByDefault;
 public class Resource {
     public static final ResourceLocation location = new ResourceLocation(
             JustEnoughCalculation.Reference.MODID, "textures/gui/resources.png");
-    public static final Resource BTN_LABEL_N = new Resource(0, 14, 14, 14);
-    public static final Resource BTN_LABEL_F = new Resource(0, 0, 14, 14);
-    public static final Resource BTN_NEW_N = new Resource(14, 14, 14, 14);
-    public static final Resource BTN_NEW_F = new Resource(14, 0, 14, 14);
-    public static final Resource BTN_SEARCH_N = new Resource(28, 14, 14, 14);
-    public static final Resource BTN_SEARCH_F = new Resource(28, 0, 14, 14);
-    public static final Resource BTN_SAVE_N = new Resource(42, 14, 14, 14);
-    public static final Resource BTN_SAVE_F = new Resource(42, 0, 14, 14);
-    public static final Resource BTN_COPY_N = new Resource(56, 14, 14, 14);
-    public static final Resource BTN_COPY_F = new Resource(56, 0, 14, 14);
-    public static final Resource BTN_COPY_D = new Resource(242, 14, 14, 14);
-    public static final Resource BTN_DEL_N = new Resource(70, 14, 14, 14);
-    public static final Resource BTN_DEL_F = new Resource(70, 0, 14, 14);
-    public static final Resource BTN_YES_N = new Resource(84, 14, 14, 14);
-    public static final Resource BTN_YES_F = new Resource(84, 0, 14, 14);
-    public static final Resource BTN_YES_D = new Resource(228, 14, 14, 14);
-    public static final Resource BTN_NO_N = new Resource(98, 14, 14, 14);
-    public static final Resource BTN_NO_F = new Resource(98, 0, 14, 14);
-    public static final Resource BTN_NO_D = new Resource(228, 0, 14, 14);
-    public static final Resource BTN_DISAMB_N = new Resource(112, 14, 14, 14);
-    public static final Resource BTN_DISAMB_F = new Resource(112, 0, 14, 14);
-    public static final Resource BTN_DISAMB_D = new Resource(242, 0, 14, 14);
-    public static final Resource BTN_IN_N = new Resource(126, 14, 14, 14);
-    public static final Resource BTN_IN_F = new Resource(126, 0, 14, 14);
-    public static final Resource BTN_IN_D = new Resource(200, 0, 14, 14);
-    public static final Resource BTN_OUT_N = new Resource(140, 14, 14, 14);
-    public static final Resource BTN_OUT_F = new Resource(140, 0, 14, 14);
-    public static final Resource BTN_OUT_D = new Resource(214, 0, 14, 14);
-    public static final Resource BTN_CAT_N = new Resource(154, 14, 14, 14);
-    public static final Resource BTN_CAT_F = new Resource(154, 0, 14, 14);
-    public static final Resource BTN_CAT_D = new Resource(200, 14, 14, 14);
-    public static final Resource BTN_LIST_N = new Resource(168, 14, 14, 14);
-    public static final Resource BTN_LIST_F = new Resource(168, 0, 14, 14);
-    public static final Resource BTN_LIST_D = new Resource(214, 14, 14, 14);
+    // letters abbr for button & icon: N - normal, F - focused, D - disabled
+    // letters abbr for fuzzy related: N - normal, F - fuzzy
+    public static final Resource BTN_LABEL_N = getIcon(0, 1);
+    public static final Resource BTN_LABEL_F = getIcon(0, 0);
+    public static final Resource BTN_NEW_N = getIcon(1, 1);
+    public static final Resource BTN_NEW_F = getIcon(1, 0);
+    public static final Resource BTN_SEARCH_N = getIcon(2, 1);
+    public static final Resource BTN_SEARCH_F = getIcon(2, 0);
+    public static final Resource BTN_SAVE_N = getIcon(3, 1);
+    public static final Resource BTN_SAVE_F = getIcon(3, 0);
+    public static final Resource BTN_COPY_N = getIcon(4, 1);
+    public static final Resource BTN_COPY_F = getIcon(4, 0);
+    public static final Resource BTN_COPY_D = getIcon(4, 2);
+    public static final Resource BTN_DEL_N = getIcon(5, 1);
+    public static final Resource BTN_DEL_F = getIcon(5, 0);
+    public static final Resource BTN_YES_N = getIcon(6, 1);
+    public static final Resource BTN_YES_F = getIcon(6, 0);
+    public static final Resource BTN_YES_D = getIcon(6, 2);
+    public static final Resource BTN_NO_N = getIcon(7, 1);
+    public static final Resource BTN_NO_F = getIcon(7, 0);
+    public static final Resource BTN_NO_D = getIcon(7, 2);
+    public static final Resource BTN_DISAMB_N = getIcon(8, 1);
+    public static final Resource BTN_DISAMB_F = getIcon(8, 0);
+    public static final Resource BTN_DISAMB_D = getIcon(8, 2);
+    public static final Resource BTN_IN_N = getIcon(9, 1);
+    public static final Resource BTN_IN_F = getIcon(9, 0);
+    public static final Resource BTN_IN_D = getIcon(9, 2);
+    public static final Resource BTN_OUT_N = getIcon(10, 1);
+    public static final Resource BTN_OUT_F = getIcon(10, 0);
+    public static final Resource BTN_OUT_D = getIcon(10, 2);
+    public static final Resource BTN_CAT_N = getIcon(11, 1);
+    public static final Resource BTN_CAT_F = getIcon(11, 0);
+    public static final Resource BTN_CAT_D = getIcon(11, 2);
+    public static final Resource BTN_LIST_N = getIcon(12, 1);
+    public static final Resource BTN_LIST_F = getIcon(12, 0);
+    public static final Resource BTN_LIST_D = getIcon(12, 2);
+    public static final Resource BTN_META_N_N = getIcon(14, 0);
+    public static final Resource BTN_META_N_F = getIcon(13, 0);
+    public static final Resource BTN_META_F_N = getIcon(16, 0);
+    public static final Resource BTN_META_F_F = getIcon(15, 0);
+    public static final Resource BTN_META_D = getIcon(17, 0);
+    public static final Resource BTN_NBT_N_N = getIcon(14, 1);
+    public static final Resource BTN_NBT_N_F = getIcon(13, 1);
+    public static final Resource BTN_NBT_F_N = getIcon(16, 1);
+    public static final Resource BTN_NBT_F_F = getIcon(15, 1);
+    public static final Resource BTN_NBT_D = getIcon(17, 1);
+    public static final Resource BTN_CAP_N_N = getIcon(14, 2);
+    public static final Resource BTN_CAP_N_F = getIcon(13, 2);
+    public static final Resource BTN_CAP_F_N = getIcon(16, 2);
+    public static final Resource BTN_CAP_F_F = getIcon(15, 2);
+    public static final Resource BTN_CAP_D = getIcon(17, 2);
     public static final Resource WGT_BUTTON_N = new Resource(40, 232, 20, 20);
     public static final Resource WGT_BUTTON_F = new Resource(60, 232, 20, 20);
     public static final Resource WGT_BUTTON_D = new Resource(80, 232, 20, 20);
@@ -66,30 +83,66 @@ public class Resource {
     public static final Resource WGT_ARR_R_N = new Resource(167, 242, 7, 9);
     public static final Resource WGT_ARR_R_D = new Resource(174, 242, 7, 9);
     public static final Resource WGT_SCROLL = new Resource(181, 232, 12, 15);
-    public static final Resource ICN_RECENT_N = new Resource(0, 42, 14, 14);
-    public static final Resource ICN_RECENT_F = new Resource(0, 28, 14, 14);
-    public static final Resource ICN_INPUT_N = new Resource(14, 42, 14, 14);
-    public static final Resource ICN_INPUT_F = new Resource(14, 28, 14, 14);
-    public static final Resource ICN_OUTPUT_N = new Resource(28, 42, 14, 14);
-    public static final Resource ICN_OUTPUT_F = new Resource(28, 28, 14, 14);
-    public static final Resource ICN_CATALYST_N = new Resource(42, 42, 14, 14);
-    public static final Resource ICN_CATALYST_F = new Resource(42, 28, 14, 14);
-    public static final Resource ICN_LIST_N = new Resource(56, 42, 14, 14);
-    public static final Resource ICN_LIST_F = new Resource(56, 28, 14, 14);
-    public static final Resource ICN_LABEL_N = new Resource(70, 42, 14, 14);
-    public static final Resource ICN_LABEL_F = new Resource(70, 28, 14, 14);
-    public static final Resource ICN_HELP_N = new Resource(84, 42, 14, 14);
-    public static final Resource ICN_HELP_F = new Resource(84, 28, 14, 14);
-    public static final Resource ICN_STACK_N = new Resource(98, 42, 14, 14);
-    public static final Resource ICN_STACK_F = new Resource(98, 28, 14, 14);
-    public static final Resource ICN_TEXT_N = new Resource(112, 42, 14, 14);
-    public static final Resource ICN_TEXT_F = new Resource(112, 28, 14, 14);
-    public static final Resource ICN_MULTI_N = new Resource(126, 42, 14, 14);
-    public static final Resource ICN_MULTI_F = new Resource(126, 28, 14, 14);
-    public static final Resource LBL_ORE_DICT = new Resource(0, 56, 16, 16);
-    public static final Resource LBL_FLUID = new Resource(16, 56, 16, 16);
-    public static final Resource LBL_UNIV_B = new Resource(32, 56, 16, 16);
-    public static final Resource LBL_UNIV_F = new Resource(48, 56, 16, 16);
+    public static final Resource ICN_RECENT_N = getIcon(0, 4);
+    public static final Resource ICN_RECENT_F = getIcon(0, 3);
+    public static final Resource ICN_INPUT_N = getIcon(1, 4);
+    public static final Resource ICN_INPUT_F = getIcon(1, 3);
+    public static final Resource ICN_OUTPUT_N = getIcon(2, 4);
+    public static final Resource ICN_OUTPUT_F = getIcon(2, 3);
+    public static final Resource ICN_CATALYST_N = getIcon(3, 4);
+    public static final Resource ICN_CATALYST_F = getIcon(3, 3);
+    public static final Resource ICN_LIST_N = getIcon(4, 4);
+    public static final Resource ICN_LIST_F = getIcon(4, 3);
+    public static final Resource ICN_LABEL_N = getIcon(5, 4);
+    public static final Resource ICN_LABEL_F = getIcon(5, 3);
+    public static final Resource ICN_HELP_N = getIcon(6, 4);
+    public static final Resource ICN_HELP_F = getIcon(6, 3);
+    public static final Resource ICN_STACK_N = getIcon(7, 4);
+    public static final Resource ICN_STACK_F = getIcon(7, 3);
+    public static final Resource ICN_TEXT_N = getIcon(8, 4);
+    public static final Resource ICN_TEXT_F = getIcon(8, 3);
+    public static final Resource ICN_MULTI_N = getIcon(9, 4);
+    public static final Resource ICN_MULTI_F = getIcon(9, 3);
+    public static final Resource LBL_FRAME = getLabel(0);
+    public static final Resource LBL_FLUID = getLabel(1);
+    public static final Resource LBL_UNIV_B = getLabel(2);
+    public static final Resource LBL_UNIV_F = getLabel(3);
+    public static final Resource LBL_FR_UL = getLabel(4);
+    public static final Resource LBL_FR_UR = getLabel(5);
+    public static final Resource LBL_FR_LL = getLabel(6);
+
+    public static final ResourceGroup BTN_LABEL = new ResourceGroup(BTN_LABEL_N, BTN_LABEL_F);
+    public static final ResourceGroup BTN_NEW = new ResourceGroup(BTN_NEW_N, BTN_NEW_F);
+    public static final ResourceGroup BTN_SEARCH = new ResourceGroup(BTN_SEARCH_N, BTN_SEARCH_F);
+    public static final ResourceGroup BTN_SAVE = new ResourceGroup(BTN_SAVE_N, BTN_SAVE_F);
+    public static final ResourceGroup BTN_COPY = new ResourceGroup(BTN_COPY_N, BTN_COPY_F, BTN_COPY_D);
+    public static final ResourceGroup BTN_DEL = new ResourceGroup(BTN_DEL_N, BTN_DEL_F);
+    public static final ResourceGroup BTN_YES = new ResourceGroup(BTN_YES_N, BTN_YES_F, BTN_YES_D);
+    public static final ResourceGroup BTN_NO = new ResourceGroup(BTN_NO_N, BTN_NO_F, BTN_NO_D);
+    public static final ResourceGroup BTN_DISAMB = new ResourceGroup(BTN_DISAMB_N, BTN_DISAMB_F, BTN_DISAMB_D);
+    public static final ResourceGroup BTN_IN = new ResourceGroup(BTN_IN_N, BTN_IN_F, BTN_IN_D);
+    public static final ResourceGroup BTN_OUT = new ResourceGroup(BTN_OUT_N, BTN_OUT_F, BTN_OUT_D);
+    public static final ResourceGroup BTN_CAT = new ResourceGroup(BTN_CAT_N, BTN_CAT_F, BTN_CAT_D);
+    public static final ResourceGroup BTN_LIST = new ResourceGroup(BTN_LIST_N, BTN_LIST_F, BTN_LIST_D);
+    public static final ResourceGroup BTN_META_N = new ResourceGroup(BTN_META_N_N, BTN_META_N_F, BTN_META_D);
+    public static final ResourceGroup BTN_CAP_N = new ResourceGroup(BTN_CAP_N_N, BTN_CAP_N_F, BTN_CAP_D);
+    public static final ResourceGroup BTN_NBT_N = new ResourceGroup(BTN_NBT_N_N, BTN_NBT_N_F, BTN_NBT_D);
+    public static final ResourceGroup BTN_META_F = new ResourceGroup(BTN_META_F_N, BTN_META_F_F, BTN_META_D);
+    public static final ResourceGroup BTN_CAP_F = new ResourceGroup(BTN_CAP_F_N, BTN_CAP_F_F, BTN_CAP_D);
+    public static final ResourceGroup BTN_NBT_F = new ResourceGroup(BTN_NBT_F_N, BTN_NBT_F_F, BTN_NBT_D);
+    public static final ResourceGroup WGT_ARR_L = new ResourceGroup(WGT_ARR_L_N, WGT_ARR_L_F, WGT_ARR_L_D);
+    public static final ResourceGroup WGT_ARR_R = new ResourceGroup(WGT_ARR_R_N, WGT_ARR_R_F, WGT_ARR_R_D);
+    public static final ResourceGroup ICN_RECENT = new ResourceGroup(ICN_RECENT_N, ICN_RECENT_F);
+    public static final ResourceGroup ICN_INPUT = new ResourceGroup(ICN_INPUT_N, ICN_INPUT_F);
+    public static final ResourceGroup ICN_OUTPUT = new ResourceGroup(ICN_OUTPUT_N, ICN_OUTPUT_F);
+    public static final ResourceGroup ICN_CATALYST = new ResourceGroup(ICN_CATALYST_N, ICN_CATALYST_F);
+    public static final ResourceGroup ICN_LIST = new ResourceGroup(ICN_LIST_N, ICN_LIST_F);
+    public static final ResourceGroup ICN_LABEL = new ResourceGroup(ICN_LABEL_N, ICN_LABEL_F);
+    public static final ResourceGroup ICN_HELP = new ResourceGroup(ICN_HELP_N, ICN_HELP_F);
+    public static final ResourceGroup ICN_STACK = new ResourceGroup(ICN_STACK_N, ICN_STACK_F);
+    public static final ResourceGroup ICN_TEXT = new ResourceGroup(ICN_TEXT_N, ICN_TEXT_F);
+    public static final ResourceGroup ICN_MULTI = new ResourceGroup(ICN_MULTI_N, ICN_MULTI_F);
+
     protected int xPos, yPos, xSize, ySize;
     protected ResourceLocation rl;
 
@@ -124,4 +177,29 @@ public class Resource {
     public ResourceLocation getResourceLocation() {
         return rl;
     }
+
+    private static Resource getIcon(int x, int y) {
+        return new Resource(x * 14, y * 14, 14, 14);
+    }
+
+    private static Resource getLabel(int x) {
+        return new Resource(x * 16, 70, 16, 16);
+    }
+
+    public static class ResourceGroup {
+        public Resource normal;
+        public Resource focused;
+        public Resource disabled;
+
+        public ResourceGroup(Resource normal, Resource focused, Resource disabled) {
+            this.normal = normal;
+            this.focused = focused;
+            this.disabled = disabled;
+        }
+
+        public ResourceGroup(Resource normal, Resource focused) {
+            this.normal = normal;
+            this.focused = focused;
+        }
+    }
 }
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WButton.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WButton.java
index 2c9d607..9494373 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WButton.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WButton.java
@@ -30,12 +30,12 @@ public abstract class WButton extends WTooltip {
         this.ySize = ySize;
     }
 
-    public WButton setListenerLeft(Runnable r) {
+    public WButton setLsnrLeft(Runnable r) {
         lsnrLeft = r;
         return this;
     }
 
-    public WButton setListenerRight(Runnable r) {
+    public WButton setLsnrRight(Runnable r) {
         lsnrRight = r;
         return this;
     }
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WButtonIcon.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WButtonIcon.java
index f1b403e..274bcce 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WButtonIcon.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WButtonIcon.java
@@ -20,20 +20,16 @@ import java.util.List;
 public class WButtonIcon extends WButton {
     protected Resource rNormal, rFocused, rDisabled;
 
-    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused) {
-        this(xPos, yPos, xSize, ySize, normal, focused, null, null);
+    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource.ResourceGroup res, String name) {
+        this(xPos, yPos, xSize, ySize, res.normal, res.focused, res.disabled, name);
     }
 
-    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused, String name) {
-        this(xPos, yPos, xSize, ySize, normal, focused, null, name);
+    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource.ResourceGroup res) {
+        this(xPos, yPos, xSize, ySize, res.normal, res.focused, res.disabled, null);
     }
 
-    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused, Resource disabled) {
-        this(xPos, yPos, xSize, ySize, normal, focused, disabled, null);
-    }
-
-    public WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused,
-                       @Nullable Resource disabled, @Nullable String name) {
+    private WButtonIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused,
+                        @Nullable Resource disabled, @Nullable String name) {
         super(xPos, yPos, xSize, ySize, name);
         this.rNormal = normal;
         this.rFocused = focused;
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WIcon.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WIcon.java
index bfae207..ea4f62b 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WIcon.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WIcon.java
@@ -19,12 +19,16 @@ public class WIcon extends WTooltip {
     public int xPos, yPos, xSize, ySize;
     public Resource normal, focused;
 
-    public WIcon(int xPos, int yPos, int xSize, int ySize, Resource normal, Resource focused) {
-        this(xPos, yPos, xSize, ySize, normal, focused, null);
+    public WIcon(int xPos, int yPos, int xSize, int ySize, Resource.ResourceGroup res) {
+        this(xPos, yPos, xSize, ySize, res.normal, res.focused, null);
     }
 
-    public WIcon(int xPos, int yPos, int xSize, int ySize,
-                 Resource normal, Resource focused, @Nullable String name) {
+    public WIcon(int xPos, int yPos, int xSize, int ySize, Resource.ResourceGroup res, String name) {
+        this(xPos, yPos, xSize, ySize, res.normal, res.focused, name);
+    }
+
+    private WIcon(int xPos, int yPos, int xSize, int ySize,
+                  Resource normal, Resource focused, @Nullable String name) {
         super(name);
         this.xPos = xPos;
         this.yPos = yPos;
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WLabel.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WLabel.java
index 66bcbbe..4162b26 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WLabel.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WLabel.java
@@ -49,8 +49,6 @@ public class WLabel implements IWidget {
 
     public void setLabel(ILabel label) {
         this.label = label;
-        //        if (mode == enumMode.EDITOR || mode == enumMode.SELECTOR)
-        //            notifyLsnr();
     }
 
     @Override
@@ -185,17 +183,15 @@ public class WLabel implements IWidget {
             WLabel wl = new WLabel(w.xPos, w.yPos, w.xSize, w.ySize, enumMode.SELECTOR);
             wl.setLabel(w.getLabel());
             WTextField wtf = new WTextField(xAlign + 10, w.yPos + w.ySize / 2 - WTextField.HEIGHT / 2, 50);
-            WButton wby = new WButtonIcon(xAlign + 60, w.yPos, 20, 20, Resource.BTN_YES_N, Resource.BTN_YES_F,
-                                          Resource.BTN_YES_D).setListenerLeft(() -> {
+            WButton wby = new WButtonIcon(xAlign + 60, w.yPos, 20, 20, Resource.BTN_YES).setLsnrLeft(() -> {
                 w.setLabel(wl.getLabel().setAmount(
                         wtf.getText().isEmpty() ? 0 : Integer.parseInt(wtf.getText())));
                 JecaGui.getCurrent().root.remove(this);
             });
-            WButton wbn = new WButtonIcon(xAlign + 79, w.yPos, 20, 20, Resource.BTN_NO_N, Resource.BTN_NO_F)
-                    .setListenerLeft(() -> {
-                        w.setLabel(ILabel.EMPTY);
-                        JecaGui.getCurrent().root.remove(this);
-                    });
+            WButton wbn = new WButtonIcon(xAlign + 79, w.yPos, 20, 20, Resource.BTN_NO).setLsnrLeft(() -> {
+                w.setLabel(ILabel.EMPTY);
+                JecaGui.getCurrent().root.remove(this);
+            });
             wtf.setText(Integer.toString(w.getLabel().getAmount()));
             wtf.setLsnrText(i -> {
                 try {
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WLabelGroup.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WLabelGroup.java
index 001a9e0..5981916 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WLabelGroup.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WLabelGroup.java
@@ -57,8 +57,12 @@ public class WLabelGroup extends WContainer {
         return labels.stream().map(WLabel::getLabel).collect(Collectors.toList());
     }
 
+    public void setLabel(ILabel label, int index) {
+        labels.get(index).setLabel(label);
+    }
+
     public void setLabel(List<ILabel> labels, int start) {
-        Wrapper<Integer> i = new Wrapper<>(start);
+        Wrapper<Integer> i = new Wrapper<>(start);  // TODO simplify
         this.labels.forEach(l -> l.setLabel(i.value < labels.size() ? labels.get(i.value++) : ILabel.EMPTY));
     }
 
diff --git a/src/main/java/me/towdium/jecalculation/gui/drawables/WSwitcher.java b/src/main/java/me/towdium/jecalculation/gui/drawables/WSwitcher.java
index f3307f7..4999e02 100644
--- a/src/main/java/me/towdium/jecalculation/gui/drawables/WSwitcher.java
+++ b/src/main/java/me/towdium/jecalculation/gui/drawables/WSwitcher.java
@@ -41,19 +41,13 @@ public class WSwitcher extends WContainer {
         this.xSize = xSize;
         this.yPos = yPos;
         this.keys = keys;
-        left = new WButtonIcon(xPos, yPos, SIZE, SIZE, Resource.WGT_ARR_L_N, Resource.WGT_ARR_L_F, Resource.WGT_ARR_L_D)
-                .setListenerLeft(() -> {
-                    if (temp == null)
-                        move(false);
-                    else
-                        setTemp(null);
-                });
-        right = new WButtonIcon(xPos + xSize - SIZE, yPos, SIZE, SIZE, Resource.WGT_ARR_R_N, Resource.WGT_ARR_R_F,
-                                Resource.WGT_ARR_R_D).setListenerLeft(() -> {
-            if (temp == null)
-                move(true);
-            else
-                setTemp(null);
+        left = new WButtonIcon(xPos, yPos, SIZE, SIZE, Resource.WGT_ARR_L).setLsnrLeft(() -> {
+            if (temp == null) move(false);
+            else setTemp(null);
+        });
+        right = new WButtonIcon(xPos + xSize - SIZE, yPos, SIZE, SIZE, Resource.WGT_ARR_R).setLsnrLeft(() -> {
+            if (temp == null) move(true);
+            else setTemp(null);
         });
         wRect = new WRectangle(xPos + SIZE, yPos, xSize - 2 * SIZE, SIZE, JecaGui.COLOR_GUI_GREY);
         wText = new WText(xPos + SIZE, yPos, xSize - 2 * SIZE, SIZE, JecaGui.Font.DEFAULT_SHADOW,
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/GuiCalculator.java b/src/main/java/me/towdium/jecalculation/gui/guis/GuiCalculator.java
index 122a48f..ff0bb1b 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/GuiCalculator.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/GuiCalculator.java
@@ -2,6 +2,7 @@ package me.towdium.jecalculation.gui.guis;
 
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
+import me.towdium.jecalculation.algorithm.CostList;
 import me.towdium.jecalculation.gui.JecaGui;
 import me.towdium.jecalculation.gui.Resource;
 import me.towdium.jecalculation.gui.drawables.*;
@@ -9,6 +10,7 @@ import me.towdium.jecalculation.data.label.ILabel;
 import me.towdium.jecalculation.data.Controller;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -18,52 +20,95 @@ import java.util.List;
 @ParametersAreNonnullByDefault
 @SideOnly(Side.CLIENT)
 public class GuiCalculator extends WContainer {
-    WLabelGroup wRecent = new WLabelGroup(7, 31, 8, 1, WLabel.enumMode.PICKER);
-    WLabel wLabel = new WLabel(31, 7, 20, 20, WLabel.enumMode.SELECTOR);
-    WButton btnSteps = new WButtonIcon(64, 62, 20, 20, Resource.BTN_LIST_N, Resource.BTN_LIST_F,
-                                       Resource.BTN_LIST_D, "calculator.step").setListenerLeft(() -> setMode(enumMode.STEPS));
-    WButton btnCatalyst = new WButtonIcon(45, 62, 20, 20, Resource.BTN_CAT_N, Resource.BTN_CAT_F,
-                                          Resource.BTN_CAT_D, "calculator.catalyst").setListenerLeft(() -> setMode(enumMode.CATALYST));
-    WButton btnOutput = new WButtonIcon(26, 62, 20, 20, Resource.BTN_OUT_N, Resource.BTN_OUT_F,
-                                        Resource.BTN_OUT_D, "calculator.output").setListenerLeft(() -> setMode(enumMode.OUTPUT));
-    WButton btnInput = new WButtonIcon(7, 62, 20, 20, Resource.BTN_IN_N, Resource.BTN_IN_F,
-                                       Resource.BTN_IN_D, "calculator.input").setListenerLeft(() -> setMode(enumMode.INPUT));
+    enumMode mode = enumMode.INPUT;
+    CostList.Calculator calculator = null;
+    WLabelGroup lgRecent = new WLabelGroup(7, 31, 8, 1, WLabel.enumMode.PICKER);
+    WLabel lLabel = new WLabel(31, 7, 20, 20, WLabel.enumMode.SELECTOR);
+    WLabelScroll lsResult = new WLabelScroll(7, 87, 8, 4, WLabel.enumMode.RESULT, true);
+    WButton btnSteps = new WButtonIcon(64, 62, 20, 20, Resource.BTN_LIST, "calculator.step")
+            .setLsnrLeft(() -> setMode(enumMode.STEPS));
+    WButton btnCatalyst = new WButtonIcon(45, 62, 20, 20, Resource.BTN_CAT, "calculator.catalyst")
+            .setLsnrLeft(() -> setMode(enumMode.CATALYST));
+    WButton btnOutput = new WButtonIcon(26, 62, 20, 20, Resource.BTN_OUT, "calculator.output")
+            .setLsnrLeft(() -> setMode(enumMode.OUTPUT));
+    WButton btnInput = new WButtonIcon(7, 62, 20, 20, Resource.BTN_IN, "calculator.input")
+            .setLsnrLeft(() -> setMode(enumMode.INPUT));
+    WTextField tfAmount = new WTextField(60, 7, 65);
 
     public GuiCalculator() {
-        wLabel.setLsnrUpdate(() -> {
-            Controller.setRecent(wLabel.label);
+        lLabel.setLsnrUpdate(() -> {
+            Controller.setRecent(lLabel.label);
             refreshRecent();
+            refreshCalculator();
         });
-        wRecent.setLsnrUpdate(l -> JecaGui.getCurrent().hand = wRecent.getLabelAt(l));
+        lgRecent.setLsnrUpdate(l -> JecaGui.getCurrent().hand = lgRecent.getLabelAt(l));
+        tfAmount.setLsnrText(s -> refreshCalculator());
         add(new WPanel());
-        add(new WTextField(61, 7, 64));
-        add(new WButtonIcon(7, 7, 20, 20, Resource.BTN_LABEL_N, Resource.BTN_LABEL_F, "calculator.label")
-                    .setListenerLeft(() -> JecaGui.displayGui(new GuiLabel(l -> {
+        add(new WButtonIcon(7, 7, 20, 20, Resource.BTN_LABEL, "calculator.label")
+                    .setLsnrLeft(() -> JecaGui.displayGui(new GuiLabel(l -> {
                         JecaGui.displayParent();
                         JecaGui.getCurrent().hand = l;
                     }))));
-        add(new WButtonIcon(130, 7, 20, 20, Resource.BTN_NEW_N, Resource.BTN_NEW_F, "calculator.recipe")
-                    .setListenerLeft(() -> JecaGui.displayGui(true, true, new GuiRecipe())));
-        add(new WButtonIcon(149, 7, 20, 20, Resource.BTN_SEARCH_N, Resource.BTN_SEARCH_F, "calculator.search")
-                    .setListenerLeft(() -> JecaGui.displayGui(new GuiSearch())));
+        add(new WButtonIcon(130, 7, 20, 20, Resource.BTN_NEW, "calculator.recipe")
+                    .setLsnrLeft(() -> JecaGui.displayGui(true, true, new GuiRecipe())));
+        add(new WButtonIcon(149, 7, 20, 20, Resource.BTN_SEARCH, "calculator.search")
+                    .setLsnrLeft(() -> JecaGui.displayGui(new GuiSearch())));
+        add(new WText(53, 13, JecaGui.Font.DEFAULT_NO_SHADOW, "x"));
         add(new WLine(55));
-        add(new WIcon(151, 31, 18, 18, Resource.ICN_RECENT_N, Resource.ICN_RECENT_F, "calculator.history"));
-        add(new WLabelScroll(7, 87, 8, 4, WLabel.enumMode.RESULT, true));
-        addAll(wRecent, wLabel, btnInput, btnOutput, btnCatalyst, btnSteps);
+        add(new WIcon(151, 31, 18, 18, Resource.ICN_RECENT, "calculator.history"));
+        addAll(lgRecent, lLabel, btnInput, btnOutput, btnCatalyst, btnSteps, lsResult, tfAmount);
         refreshRecent();
         setMode(enumMode.INPUT);
+        refreshCalculator();
     }
 
     void setMode(enumMode mode) {
+        this.mode = mode;
         btnInput.setDisabled(mode == enumMode.INPUT);
         btnOutput.setDisabled(mode == enumMode.OUTPUT);
         btnCatalyst.setDisabled(mode == enumMode.CATALYST);
         btnSteps.setDisabled(mode == enumMode.STEPS);
+        refreshResult();
     }
 
     void refreshRecent() {
         List<ILabel> recent = Controller.getRecent();
-        if (recent.size() > 1) wRecent.setLabel(recent.subList(1, recent.size()), 0);
+        if (!recent.isEmpty()) lLabel.setLabel(recent.get(0));
+        if (recent.size() > 1) lgRecent.setLabel(recent.subList(1, recent.size()), 0);
+    }
+
+    void refreshCalculator() {
+        try {
+            String s = tfAmount.getText();
+            int i = s.isEmpty() ? 1 : Integer.parseInt(tfAmount.getText());
+            tfAmount.setColor(JecaGui.COLOR_TEXT_WHITE);
+            calculator = new CostList(lLabel.getLabel().copy().setAmount(i)).calculate();
+        } catch (NumberFormatException e) {
+            tfAmount.setColor(JecaGui.COLOR_TEXT_RED);
+            calculator = null;
+        }
+        refreshResult();
+    }
+
+    void refreshResult() {
+        if (calculator == null) {
+            lsResult.setLabels(new ArrayList<>());
+        } else {
+            switch (mode) {
+                case INPUT:
+                    lsResult.setLabels(calculator.getInputs());
+                    break;
+                case OUTPUT:
+                    lsResult.setLabels(new ArrayList<>());
+                    break;
+                case CATALYST:
+                    lsResult.setLabels(calculator.getCatalysts());
+                    break;
+                case STEPS:
+                    lsResult.setLabels(new ArrayList<>());
+                    break;
+            }
+        }
     }
 
     enum enumMode {
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/GuiDisambiguation.java b/src/main/java/me/towdium/jecalculation/gui/guis/GuiDisambiguation.java
index 3470378..2d537cb 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/GuiDisambiguation.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/GuiDisambiguation.java
@@ -31,11 +31,11 @@ public class GuiDisambiguation extends IWPicker.Impl {
 
         add(new WPanel());
         add(switcher);
-        add(new WIcon(149, 24, 20, 20, Resource.ICN_HELP_N, Resource.ICN_HELP_F, "disambiguation.help"));
-        add(new WIcon(7, 48, 18, 54, Resource.ICN_LIST_N, Resource.ICN_LIST_F, "disambiguation.list"));
-        add(new WIcon(7, 105, 18, 54, Resource.ICN_LABEL_N, Resource.ICN_LABEL_F, "disambiguation.label"));
+        add(new WIcon(149, 24, 20, 20, Resource.ICN_HELP, "disambiguation.help"));
+        add(new WIcon(7, 48, 18, 54, Resource.ICN_LIST, "disambiguation.list"));
+        add(new WIcon(7, 105, 18, 54, Resource.ICN_LABEL, "disambiguation.label"));
         add(new WSearch(i -> {
-            if (callback != null) callback.accept(i);
+            if (callback != null) callback.accept(i.copy().increaseAmount());
         }, tf, lsUp, lsDown));
 
         setPage(0);
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/GuiRecipe.java b/src/main/java/me/towdium/jecalculation/gui/guis/GuiRecipe.java
index 8b429a4..4d7c8a6 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/GuiRecipe.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/GuiRecipe.java
@@ -8,14 +8,13 @@ import me.towdium.jecalculation.data.structure.Recipe;
 import me.towdium.jecalculation.gui.JecaGui;
 import me.towdium.jecalculation.gui.Resource;
 import me.towdium.jecalculation.gui.drawables.*;
+import me.towdium.jecalculation.nei.NEIPlugin;
 import me.towdium.jecalculation.utils.Utilities;
 import me.towdium.jecalculation.utils.wrappers.Pair;
 import me.towdium.jecalculation.utils.wrappers.Triple;
 import net.minecraft.item.ItemStack;
 
 import java.util.*;
-import java.util.function.BiConsumer;
-import java.util.function.BiFunction;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -28,66 +27,59 @@ public class GuiRecipe extends WContainer {
     HashMap<Integer, List<ILabel>> disambiguation = new HashMap<>();
     WSwitcher switcherGroup = new WSwitcher(7, 7, 162, Controller.getGroups());
     WTextField textField = new WTextField(49, 33, 119);
-    WButton buttonCopy = new WButtonIcon(83, 33, 20, 20, Resource.BTN_COPY_N, Resource.BTN_COPY_F,
-                                         Resource.BTN_COPY_D, "recipe.copy").setDisabled(true).setListenerLeft(() -> {
+    WButton buttonCopy = new WButtonIcon(83, 33, 20, 20, Resource.BTN_COPY, "recipe.copy").setLsnrLeft(() -> {
         Controller.addRecipe(switcherGroup.getText(), toRecipe());
         JecaGui.displayParent();
     });
 
     WLabelGroup groupCatalyst = new WLabelGroup(28, 87, 7, 1, 20, 20, WLabel.enumMode.EDITOR);
-    WButton buttonDisamb = new WButtonIcon(121, 33, 20, 20, Resource.BTN_DISAMB_N,
-                                           Resource.BTN_DISAMB_F, Resource.BTN_DISAMB_D, "recipe.disamb").setDisabled(true).setListenerLeft(() -> {
+    WButton buttonDisamb = new WButtonIcon(121, 33, 20, 20, Resource.BTN_DISAMB, "recipe.disamb").setLsnrLeft(() -> {
         if (disambiguation != null) JecaGui.displayGui(new GuiDisambiguation(new ArrayList<>(disambiguation.values()))
                                                                .setCallback(l -> {
                                                                    JecaGui.displayParent();
                                                                    JecaGui.getCurrent().hand = l;
                                                                }));
-    });
-    WLabelGroup groupInput = new WLabelGroup(28, 111, 7, 2, 20, 20, WLabel.enumMode.EDITOR).setLsnrUpdate(i -> {
+    });    WLabelGroup groupInput = new WLabelGroup(28, 111, 7, 2, 20, 20, WLabel.enumMode.EDITOR).setLsnrUpdate(i -> {
         disambiguation.remove(i);
         refresh();
     });
     WLabelGroup groupOutput = new WLabelGroup(28, 63, 7, 1, 20, 20, WLabel.enumMode.EDITOR).setLsnrUpdate(i -> {
-        disambiguation.remove(i + 14);
+        disambiguation.remove(i + 21);
         refresh();
     });
-    WButton buttonClear = new WButtonIcon(64, 33, 20, 20, Resource.BTN_DEL_N, Resource.BTN_DEL_F, "recipe.clear")
-            .setListenerLeft(this::clear);
-    WButton buttonLabel = new WButtonIcon(45, 33, 20, 20, Resource.BTN_LABEL_N, Resource.BTN_LABEL_F, "recipe.label")
-            .setListenerLeft(() -> JecaGui.displayGui(new GuiLabel((l) -> {
+    WButton buttonClear = new WButtonIcon(64, 33, 20, 20, Resource.BTN_DEL, "recipe.clear").setLsnrLeft(this::clear);
+    WButton buttonLabel = new WButtonIcon(45, 33, 20, 20, Resource.BTN_LABEL, "recipe.label")
+            .setLsnrLeft(() -> JecaGui.displayGui(new GuiLabel((l) -> {
                 JecaGui.displayParent();
                 JecaGui.getCurrent().hand = l;
             })));
-    WButton buttonSave = new WButtonIcon(26, 33, 20, 20, Resource.BTN_SAVE_N, Resource.BTN_SAVE_F, "recipe.save")
-            .setListenerLeft(() -> {
-                if (dest == null)
-                    Controller.addRecipe(switcherGroup.getText(), toRecipe());
-                else {
-                    if (textField.getText().equals(dest.one))
-                        Controller.setRecipe(dest.one, dest.two, toRecipe());
-                    else {
-                        Controller.removeRecipe(dest.one, dest.two);
-                        Controller.addRecipe(switcherGroup.getText(), toRecipe());
-                    }
-                }
-                JecaGui.displayParent();
-            });
+    WButton buttonSave = new WButtonIcon(26, 33, 20, 20, Resource.BTN_SAVE, "recipe.save").setLsnrLeft(() -> {
+        if (dest == null)
+            Controller.addRecipe(switcherGroup.getText(), toRecipe());
+        else {
+            if (textField.getText().equals(dest.one))
+                Controller.setRecipe(dest.one, dest.two, toRecipe());
+            else {
+                Controller.removeRecipe(dest.one, dest.two);
+                Controller.addRecipe(switcherGroup.getText(), toRecipe());
+            }
+        }
+        JecaGui.displayParent();
+    });
 
-    WButton buttonNew = new WButtonIcon(7, 33, 20, 20, Resource.BTN_NEW_N, Resource.BTN_NEW_F, "recipe.new")
-            .setListenerLeft(() -> setModeNewGroup(true));
-    WButton buttonDel = new WButtonIcon(102, 33, 20, 20, Resource.BTN_NO_N, Resource.BTN_NO_F, Resource.BTN_NO_D,
-                                        "recipe.delete").setDisabled(true).setListenerLeft(() -> {
+    WButton buttonDel = new WButtonIcon(102, 33, 20, 20, Resource.BTN_NO, "recipe.delete").setLsnrLeft(() -> {
         Controller.removeRecipe(dest.one, dest.two);
         JecaGui.displayParent();
     });
-    WButton buttonYes = new WButtonIcon(7, 33, 20, 20, Resource.BTN_YES_N, Resource.BTN_YES_F, "recipe.confirm")
-            .setListenerLeft(() -> {
-                switcherGroup.setTemp(textField.getText());
-                textField.setText("");
-                setModeNewGroup(false);
-            });
-    WButton buttonNo = new WButtonIcon(26, 33, 20, 20, Resource.BTN_NO_N, Resource.BTN_NO_F, "recipe.cancel")
-            .setListenerLeft(() -> setModeNewGroup(false));
+    WButton buttonNew = new WButtonIcon(7, 33, 20, 20, Resource.BTN_NEW, "recipe.new")
+            .setLsnrLeft(() -> setModeNewGroup(true));
+    WButton buttonYes = new WButtonIcon(7, 33, 20, 20, Resource.BTN_YES, "recipe.confirm").setLsnrLeft(() -> {
+        switcherGroup.setTemp(textField.getText());
+        textField.setText("");
+        setModeNewGroup(false);
+    });
+    WButton buttonNo = new WButtonIcon(26, 33, 20, 20, Resource.BTN_NO, "recipe.cancel")
+            .setLsnrLeft(() -> setModeNewGroup(false));
 
 
     public GuiRecipe(String group, int index) {
@@ -96,19 +88,20 @@ public class GuiRecipe extends WContainer {
         Recipe r = Controller.getRecipe(group, index);
         fromRecipe(r);
         switcherGroup.setIndex(Controller.getGroups().indexOf(group));
-        buttonCopy.setDisabled(false);
-        buttonDel.setDisabled(false);
     }
 
     public GuiRecipe() {
         add(new WPanel());
-        add(new WIcon(7, 63, 21, 20, Resource.ICN_OUTPUT_N, Resource.ICN_OUTPUT_F, "recipe.output"));
-        add(new WIcon(7, 87, 21, 20, Resource.ICN_CATALYST_N, Resource.ICN_CATALYST_F, "recipe.catalyst"));
-        add(new WIcon(7, 111, 21, 40, Resource.ICN_INPUT_N, Resource.ICN_INPUT_F, "recipe.input"));
+        add(new WIcon(7, 63, 21, 20, Resource.ICN_OUTPUT, "recipe.output"));
+        add(new WIcon(7, 87, 21, 20, Resource.ICN_CATALYST, "recipe.catalyst"));
+        add(new WIcon(7, 111, 21, 40, Resource.ICN_INPUT, "recipe.input"));
         add(new WLine(57));
         addAll(groupInput, groupCatalyst, groupOutput, switcherGroup);
         if (switcherGroup.getTexts().isEmpty()) switcherGroup.setTemp(Utilities.I18n.format("common.default"));
         setModeNewGroup(false);
+        buttonCopy.setDisabled(true);
+        buttonDel.setDisabled(true);
+        buttonDisamb.setDisabled(true);
     }
 
     public void setModeNewGroup(boolean b) {
@@ -142,23 +135,30 @@ public class GuiRecipe extends WContainer {
         ItemStack outputStack = recipe.getResultStack(recipeIndex).item;
         merge(output, Stream.of(outputStack).map(ILabel.Converter::from).collect(Collectors.toList()));
 
+        // catalyst ignore multiple catalyst
+        NEIPlugin.getCatalyst(recipe).map(ILabel.Converter::from).ifPresent(catalyst -> {
+            groupCatalyst.setLabel(catalyst, 0);
+        });
+
         groupInput.setLabel(sort(input, 0, true), 0);
-        groupOutput.setLabel(sort(output, 14, false), 0);
+        groupOutput.setLabel(sort(output, 21, false), 0);
         refresh();
     }
 
     private void merge(ArrayList<Triple<ILabel, CostList, CostList>> dst, List<ILabel> list) {
-        if (list.isEmpty()) return;
+        if (list.isEmpty())
+            return;
         dst.stream().filter(p -> {
             CostList cl = new CostList(list);
             if (p.three.equals(cl)) {
                 ILabel.MERGER.merge(p.one, ILabel.CONVERTER.first(list), true).ifPresent(i -> p.one = i);
                 p.two = p.two.merge(cl, true, true);
                 return true;
-            } else return false;
+            } else
+                return false;
         }).findAny().orElseGet(() -> {
-            Triple<ILabel, CostList, CostList> ret = new Triple<>(
-                    ILabel.CONVERTER.first(list), new CostList(list), new CostList(list));
+            Triple<ILabel, CostList, CostList> ret = new Triple<>(ILabel.CONVERTER.first(list), new CostList(list),
+                                                                  new CostList(list));
             dst.add(ret);
             return ret;
         });
@@ -180,12 +180,13 @@ public class GuiRecipe extends WContainer {
     }
 
     void fromRecipe(Recipe r) {
-        groupInput.setLabel(Arrays.stream(r.getLabel(Recipe.enumIoType.INPUT))
-                                  .map(ILabel::copy).collect(Collectors.toList()), 0);
-        groupCatalyst.setLabel(Arrays.stream(r.getLabel(Recipe.enumIoType.CATALYST))
-                                     .map(ILabel::copy).collect(Collectors.toList()), 0);
-        groupOutput.setLabel(Arrays.stream(r.getLabel(Recipe.enumIoType.OUTPUT))
-                                   .map(ILabel::copy).collect(Collectors.toList()), 0);
+        groupInput.setLabel(
+                Arrays.stream(r.getLabel(Recipe.enumIoType.INPUT)).map(ILabel::copy).collect(Collectors.toList()), 0);
+        groupCatalyst.setLabel(
+                Arrays.stream(r.getLabel(Recipe.enumIoType.CATALYST)).map(ILabel::copy).collect(Collectors.toList()),
+                0);
+        groupOutput.setLabel(
+                Arrays.stream(r.getLabel(Recipe.enumIoType.OUTPUT)).map(ILabel::copy).collect(Collectors.toList()), 0);
     }
 
 
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/GuiSearch.java b/src/main/java/me/towdium/jecalculation/gui/guis/GuiSearch.java
index e58a6ae..9e5be5d 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/GuiSearch.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/GuiSearch.java
@@ -27,8 +27,8 @@ public class GuiSearch extends WContainer {
         add(switcherGroup);
         add(new WSearch(i -> content.stream().filter(j -> j.one.getRep() == i).findFirst().ifPresent(j ->
                                                                                                              JecaGui.displayGui(false, true, new GuiRecipe(j.two, j.three))), new WTextField(25, 27, 90), labelScroll));
-        add(new WIcon(149, 27, 20, 20, Resource.ICN_HELP_N, Resource.ICN_HELP_F, "search.help"));
-        add(new WIcon(7, 27, 20, 20, Resource.ICN_TEXT_N, Resource.ICN_TEXT_F, "search.text"));
+        add(new WIcon(149, 27, 20, 20, Resource.ICN_HELP, "search.help"));
+        add(new WIcon(7, 27, 20, 20, Resource.ICN_TEXT, "search.text"));
         refresh();
     }
 
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerItemStack.java b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerItemStack.java
new file mode 100644
index 0000000..2aa4e19
--- /dev/null
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerItemStack.java
@@ -0,0 +1,72 @@
+package me.towdium.jecalculation.gui.guis.pickers;
+
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import me.towdium.jecalculation.data.label.ILabel;
+import me.towdium.jecalculation.data.label.labels.LItemStack;
+import me.towdium.jecalculation.gui.IWPicker;
+import me.towdium.jecalculation.gui.Resource;
+import me.towdium.jecalculation.gui.drawables.WButton;
+import me.towdium.jecalculation.gui.drawables.WButtonIcon;
+import me.towdium.jecalculation.gui.drawables.WLabel;
+
+import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.function.Consumer;
+
+/**
+ * Author: Towdium
+ * Date: 18-9-18
+ */
+@ParametersAreNonnullByDefault
+@SideOnly(Side.CLIENT)
+public class PickerItemStack extends IWPicker.Impl {
+    WLabel label = new WLabel(7, 7, 20, 20, WLabel.enumMode.SELECTOR).setLsnrUpdate(this::update);
+    WButton bConfirm = new WButtonIcon(149, 7, 20, 20, Resource.BTN_YES).setLsnrLeft(() -> callback.accept(label.getLabel()));
+    WButton bNbtF = new WButtonIcon(49, 7, 20, 20, Resource.BTN_NBT_F).setLsnrLeft(() -> setFNbt(false));
+    WButton bBbtN = new WButtonIcon(49, 7, 20, 20, Resource.BTN_NBT_N).setLsnrLeft(() -> setFNbt(true));
+    WButton bCapF = new WButtonIcon(68, 7, 20, 20, Resource.BTN_CAP_F).setLsnrLeft(() -> setFCap(false));
+    WButton bCapN = new WButtonIcon(68, 7, 20, 20, Resource.BTN_CAP_N).setLsnrLeft(() -> setFCap(true));
+    WButton bMetaF = new WButtonIcon(30, 7, 20, 20, Resource.BTN_META_F).setLsnrLeft(() -> setFMeta(false));
+    WButton bMetaN = new WButtonIcon(30, 7, 20, 20, Resource.BTN_META_N).setLsnrLeft(() -> setFMeta(true));
+
+    public PickerItemStack() {
+        addAll(label, bConfirm);
+        add(bConfirm);
+        update();
+    }
+
+    public void update() {
+        setFCap(false);
+        setFMeta(false);
+        setFNbt(false);
+        boolean b = label.getLabel() == ILabel.EMPTY;
+        bBbtN.setDisabled(b);
+        bCapN.setDisabled(b);
+        bMetaN.setDisabled(b);
+        bConfirm.setDisabled(b);
+    }
+
+    private void setFNbt(boolean b) {
+        setF(b, bBbtN, bNbtF, i -> i.setFNbt(b));
+    }
+
+    private void setFMeta(boolean b) {
+        setF(b, bMetaN, bMetaF, i -> i.setFMeta(b));
+    }
+
+    private void setFCap(boolean b) {
+        setF(b, bCapN, bCapF, i -> i.setFCap(b));
+    }
+
+    private void setF(boolean b, WButton be, WButton bd, Consumer<LItemStack> c) {
+        if (b) {
+            remove(be);
+            add(bd);
+        } else {
+            remove(bd);
+            add(be);
+        }
+        ILabel l = this.label.getLabel();
+        if (l instanceof LItemStack) c.accept((LItemStack) l);
+    }
+}
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerPlaceholder.java b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerPlaceholder.java
index 3024a1c..423ed53 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerPlaceholder.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerPlaceholder.java
@@ -24,12 +24,12 @@ public class PickerPlaceholder extends IWPicker.Impl {
         WTextField create = new WTextField(26, 7, 69);
         create.setLsnrText(s -> create.setColor(s.equals("") ? JecaGui.COLOR_TEXT_RED : JecaGui.COLOR_TEXT_WHITE));
         add(new WSearch(l -> callback.accept(l), search, scroll));
-        add(new WIcon(149, 45, 20, 20, Resource.ICN_HELP_N, Resource.ICN_HELP_F, "picker_placeholder.help_search"));
-        add(new WIcon(149, 7, 20, 20, Resource.ICN_HELP_N, Resource.ICN_HELP_F, "picker_placeholder.help_create"));
-        add(new WIcon(7, 45, 20, 20, Resource.ICN_TEXT_N, Resource.ICN_TEXT_F, "picker_placeholder.text_search"));
-        add(new WIcon(7, 7, 20, 20, Resource.ICN_TEXT_N, Resource.ICN_TEXT_F, "picker_placeholder.text_create"));
+        add(new WIcon(149, 45, 20, 20, Resource.ICN_HELP, "picker_placeholder.help_search"));
+        add(new WIcon(149, 7, 20, 20, Resource.ICN_HELP, "picker_placeholder.help_create"));
+        add(new WIcon(7, 45, 20, 20, Resource.ICN_TEXT, "picker_placeholder.text_search"));
+        add(new WIcon(7, 7, 20, 20, Resource.ICN_TEXT, "picker_placeholder.text_create"));
         add(new WLine(36));
-        add(new WButtonIcon(95, 7, 20, 20, Resource.BTN_YES_N, Resource.BTN_YES_F).setListenerLeft(() -> {
+        add(new WButtonIcon(95, 7, 20, 20, Resource.BTN_YES).setLsnrLeft(() -> {
             if (!create.getText().equals("")) callback.accept(new LPlaceholder(create.getText(), 1));
         }));
         add(create);
diff --git a/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerSimple.java b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerSimple.java
index f1c0843..6bf1ab5 100644
--- a/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerSimple.java
+++ b/src/main/java/me/towdium/jecalculation/gui/guis/pickers/PickerSimple.java
@@ -32,8 +32,8 @@ public class PickerSimple extends IWPicker.Impl {
         WLabelScroll ls = new WLabelScroll(7, 33, 8, 7, WLabel.enumMode.PICKER, true).setLabels(labels);
         WTextField tf = new WTextField(26, 7, 90);
         add(new WSearch(l -> callback.accept(l), tf, ls));
-        add(new WIcon(149, 7, 20, 20, Resource.ICN_HELP_N, Resource.ICN_HELP_F, l18nKey + ".help"));
-        add(new WIcon(7, 7, 20, 20, Resource.ICN_TEXT_N, Resource.ICN_TEXT_F, l18nKey + ".text"));
+        add(new WIcon(149, 7, 20, 20, Resource.ICN_HELP, l18nKey + ".help"));
+        add(new WIcon(7, 7, 20, 20, Resource.ICN_TEXT, l18nKey + ".text"));
     }
 
 
diff --git a/src/main/java/me/towdium/jecalculation/nei/NEIPlugin.java b/src/main/java/me/towdium/jecalculation/nei/NEIPlugin.java
index c85e3f7..3d475f1 100644
--- a/src/main/java/me/towdium/jecalculation/nei/NEIPlugin.java
+++ b/src/main/java/me/towdium/jecalculation/nei/NEIPlugin.java
@@ -1,8 +1,16 @@
 package me.towdium.jecalculation.nei;
 
 import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.GuiRecipeTab;
+import codechicken.nei.recipe.HandlerInfo;
+import codechicken.nei.recipe.IRecipeHandler;
+import codechicken.nei.recipe.TemplateRecipeHandler;
 import me.towdium.jecalculation.data.label.ILabel;
 import net.minecraft.item.ItemStack;
+import scala.tools.cmd.Opt;
+
+import javax.annotation.Nonnull;
+import java.util.Optional;
 
 public class NEIPlugin {
 
@@ -20,4 +28,21 @@ public class NEIPlugin {
     public static void setLabelUnderMouse(ItemStack itemStack) {
         NEIPlugin.currentItemStack = itemStack;
     }
+
+    public static Optional<ItemStack> getCatalyst(@Nonnull IRecipeHandler handler) {
+        final String handlerName = handler.toString().split("@")[0];
+        final String handlerID;
+        if(handler instanceof TemplateRecipeHandler) {
+            handlerID = (((TemplateRecipeHandler)handler).getOverlayIdentifier());
+        } else {
+            handlerID = null;
+        }
+        HandlerInfo info = GuiRecipeTab.getHandlerInfo(handlerName, handlerID);
+
+        if(info == null) {
+            return Optional.empty();
+        }
+        ItemStack itemStack = info.getItemStack();
+        return Optional.ofNullable(itemStack);
+    }
 }
diff --git a/src/main/resources/assets/jecalculation/textures/gui/resources.png b/src/main/resources/assets/jecalculation/textures/gui/resources.png
index 8dc55ec..b1039fe 100644
Binary files a/src/main/resources/assets/jecalculation/textures/gui/resources.png and b/src/main/resources/assets/jecalculation/textures/gui/resources.png differ