diff --git a/src/com/gpl/rpg/atcontentstudio/ui/CustomListModel.java b/src/com/gpl/rpg/atcontentstudio/ui/CustomListModel.java
new file mode 100644
index 0000000..90dff18
--- /dev/null
+++ b/src/com/gpl/rpg/atcontentstudio/ui/CustomListModel.java
@@ -0,0 +1,90 @@
+package com.gpl.rpg.atcontentstudio.ui;
+
+import javax.swing.*;
+import javax.swing.event.ListDataEvent;
+import javax.swing.event.ListDataListener;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+public abstract class CustomListModel<S, E> implements ListModel<E> {
+    protected S source;
+
+    protected abstract List<E> getItems();
+    protected abstract void setItems(List<E> items);
+
+    public CustomListModel(S source) {
+        this.source = source;
+    }
+
+    @Override
+    public int getSize() {
+        if (getItems() == null) return 0;
+        return getItems().size();
+    }
+
+    @Override
+    public E getElementAt(int index) {
+        if (getItems() == null) return null;
+        return getItems().get(index);
+    }
+
+    public void addItem(E item) {
+        if (getItems() == null) {
+            setItems(new ArrayList<E>());
+        }
+        getItems().add(item);
+        int index = getItems().indexOf(item);
+        for (ListDataListener l : listeners) {
+            l.intervalAdded(new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, index, index));
+        }
+    }
+
+    public void removeItem(E item) {
+        int index = getItems().indexOf(item);
+        getItems().remove(item);
+        if (getItems().isEmpty()) {
+            setItems(null);
+        }
+        for (ListDataListener l : listeners) {
+            l.intervalRemoved(new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index));
+        }
+    }
+
+    public void moveUp(E item) {
+        moveUpOrDown(item, -1);
+    }
+
+    public void moveDown(E item) {
+        moveUpOrDown(item, 1);
+    }
+
+    private void moveUpOrDown(E item, int direction) {
+        int index = getItems().indexOf(item);
+        E exchanged = getItems().get(index + direction);
+        getItems().set(index, exchanged);
+        getItems().set(index + direction, item);
+        for (ListDataListener l : listeners) {
+            l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index + direction, index));
+        }
+    }
+
+    public void itemChanged(E item) {
+        int index = getItems().indexOf(item);
+        for (ListDataListener l : listeners) {
+            l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index));
+        }
+    }
+
+    List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
+
+    @Override
+    public void addListDataListener(ListDataListener l) {
+        listeners.add(l);
+    }
+
+    @Override
+    public void removeListDataListener(ListDataListener l) {
+        listeners.remove(l);
+    }
+}
diff --git a/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DialogueEditor.java b/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DialogueEditor.java
index a520145..6fd50c4 100644
--- a/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DialogueEditor.java
+++ b/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DialogueEditor.java
@@ -12,7 +12,6 @@ import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
 
 import javax.swing.ButtonGroup;
 import javax.swing.DefaultListCellRenderer;
@@ -28,10 +27,7 @@ import javax.swing.JScrollPane;
 import javax.swing.JSpinner;
 import javax.swing.JTextArea;
 import javax.swing.JTextField;
-import javax.swing.ListModel;
 import javax.swing.ListSelectionModel;
-import javax.swing.event.ListDataEvent;
-import javax.swing.event.ListDataListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
@@ -52,6 +48,7 @@ import com.gpl.rpg.atcontentstudio.ui.BooleanBasedCheckBox;
 import com.gpl.rpg.atcontentstudio.ui.CollapsiblePanel;
 import com.gpl.rpg.atcontentstudio.ui.DefaultIcons;
 import com.gpl.rpg.atcontentstudio.ui.FieldUpdateListener;
+import com.gpl.rpg.atcontentstudio.ui.CustomListModel;
 import com.gpl.rpg.atcontentstudio.ui.OverlayIcon;
 import com.gpl.rpg.atcontentstudio.ui.gamedataeditors.dialoguetree.DialogueGraphView;
 import com.jidesoft.swing.JideBoxLayout;
@@ -812,65 +809,19 @@ public class DialogueEditor extends JSONElementEditor {
 	}
 	
 	
-	public static class RewardsListModel implements ListModel<Dialogue.Reward> {
-		
-		Dialogue source;
-		
+	public static class RewardsListModel extends CustomListModel<Dialogue,Dialogue.Reward> {
+		@Override
+		protected List<Dialogue.Reward> getItems() {
+			return source.rewards;
+		}
+
+		@Override
+		protected void setItems(List<Dialogue.Reward> items) {
+			source.rewards = items;
+		}
+
 		public RewardsListModel(Dialogue dialogue) {
-			this.source = dialogue;
-		}
-
-		@Override
-		public int getSize() {
-			if (source.rewards == null) return 0;
-			return source.rewards.size();
-		}
-		
-		@Override
-		public Dialogue.Reward getElementAt(int index) {
-			if (source.rewards == null) return null;
-			return source.rewards.get(index);
-		}
-		
-		public void addItem(Dialogue.Reward item) {
-			if (source.rewards == null) {
-				source.rewards = new ArrayList<Dialogue.Reward>();
-			}
-			source.rewards.add(item);
-			int index = source.rewards.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.intervalAdded(new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, index, index));
-			}
-		}
-		
-		public void removeItem(Dialogue.Reward item) {
-			int index = source.rewards.indexOf(item);
-			source.rewards.remove(item);
-			if (source.rewards.isEmpty()) {
-				source.rewards = null;
-			}
-			for (ListDataListener l : listeners) {
-				l.intervalRemoved(new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index));
-			}
-		}
-
-		public void itemChanged(Dialogue.Reward item) {
-			int index = source.rewards.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index));
-			}
-		}
-		
-		List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
-		
-		@Override
-		public void addListDataListener(ListDataListener l) {
-			listeners.add(l);
-		}
-		
-		@Override
-		public void removeListDataListener(ListDataListener l) {
-			listeners.remove(l);
+			super(dialogue);
 		}
 	}
 	
@@ -981,87 +932,19 @@ public class DialogueEditor extends JSONElementEditor {
 	}
 	
 	
-	public static class RepliesListModel implements ListModel<Dialogue.Reply> {
+	public static class RepliesListModel extends CustomListModel<Dialogue, Dialogue.Reply> {
+		@Override
+		protected List<Dialogue.Reply> getItems() {
+			return source.replies;
+		}
 
-		Dialogue source;
+		@Override
+		protected void setItems(List<Dialogue.Reply> items) {
+			source.replies = items;
+		}
 
 		public RepliesListModel(Dialogue dialogue) {
-			this.source = dialogue;
-		}
-
-		
-		@Override
-		public int getSize() {
-			if (source.replies == null) return 0;
-			return source.replies.size();
-		}
-
-		@Override
-		public Dialogue.Reply getElementAt(int index) {
-			if (source.replies == null) return null;
-			return source.replies.get(index);
-		}
-		
-		public void addItem(Dialogue.Reply item) {
-			if (source.replies == null) {
-				source.replies = new ArrayList<Dialogue.Reply>();
-			}
-			source.replies.add(item);
-			int index = source.replies.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.intervalAdded(new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, index, index));
-			}
-		}
-		
-		public void removeItem(Dialogue.Reply item) {
-			int index = source.replies.indexOf(item);
-			source.replies.remove(item);
-			if (source.replies.isEmpty()) {
-				source.replies = null;
-			}
-			for (ListDataListener l : listeners) {
-				l.intervalRemoved(new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index));
-			}
-		}
-
-		public void itemChanged(Dialogue.Reply item) {
-			int index = source.replies.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index));
-			}
-		}
-		
-		public void moveUp(Dialogue.Reply item) {
-			int index = source.replies.indexOf(item);
-			Dialogue.Reply exchanged = source.replies.get(index - 1);
-			source.replies.set(index, exchanged);
-			source.replies.set(index - 1, item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index - 1, index));
-			}
-		}
-
-		public void moveDown(Dialogue.Reply item) {
-			int index = source.replies.indexOf(item);
-			Dialogue.Reply exchanged = source.replies.get(index + 1);
-			source.replies.set(index, exchanged);
-			source.replies.set(index + 1, item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index + 1));
-			}
-		}
-
-
-		List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
-
-		@Override
-		public void addListDataListener(ListDataListener l) {
-			listeners.add(l);
-		}
-
-		@Override
-		public void removeListDataListener(ListDataListener l) {
-			listeners.remove(l);
+			super(dialogue);
 		}
 	}
 
@@ -1115,69 +998,20 @@ public class DialogueEditor extends JSONElementEditor {
 		}
 	}
 
-	public static class ReplyRequirementsListModel implements ListModel<Requirement> {
+	public static class ReplyRequirementsListModel extends CustomListModel<Dialogue.Reply,Requirement> {
+		@Override
+		protected List<Requirement> getItems() {
+			return source.requirements;
+		}
+
+		@Override
+		protected void setItems(List<Requirement> items) {
+			source.requirements = items;
+		}
 
-		Dialogue.Reply reply;
-		
 		public ReplyRequirementsListModel(Dialogue.Reply reply) {
-			this.reply = reply;
+			super(reply);
 		}
-		
-		@Override
-		public int getSize() {
-			if (reply.requirements == null) return 0;
-			return reply.requirements.size();
-		}
-
-		@Override
-		public Requirement getElementAt(int index) {
-			if (reply.requirements == null) return null;
-			return reply.requirements.get(index);
-		}
-		
-
-		
-		public void addItem(Requirement item) {
-			if (reply.requirements == null) {
-				reply.requirements = new ArrayList<Requirement>();
-			}
-			reply.requirements.add(item);
-			int index = reply.requirements.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.intervalAdded(new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, index, index));
-			}
-		}
-		
-		public void removeItem(Requirement item) {
-			int index = reply.requirements.indexOf(item);
-			reply.requirements.remove(item);
-			if (reply.requirements.isEmpty()) {
-				reply.requirements = null;
-			}
-			for (ListDataListener l : listeners) {
-				l.intervalRemoved(new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index));
-			}
-		}
-
-		public void itemChanged(Requirement item) {
-			int index = reply.requirements.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index));
-			}
-		}
-		
-		List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
-		
-		@Override
-		public void addListDataListener(ListDataListener l) {
-			listeners.add(l);
-		}
-		
-		@Override
-		public void removeListDataListener(ListDataListener l) {
-			listeners.remove(l);
-		}
-		
 	}
 	
 	public static class ReplyRequirementsCellRenderer extends DefaultListCellRenderer {
diff --git a/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DroplistEditor.java b/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DroplistEditor.java
index e644c17..1c69553 100644
--- a/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DroplistEditor.java
+++ b/src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DroplistEditor.java
@@ -5,7 +5,6 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
 
 import javax.swing.DefaultListCellRenderer;
 import javax.swing.ImageIcon;
@@ -17,10 +16,7 @@ import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JSpinner;
 import javax.swing.JTextField;
-import javax.swing.ListModel;
 import javax.swing.ListSelectionModel;
-import javax.swing.event.ListDataEvent;
-import javax.swing.event.ListDataListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
@@ -34,6 +30,7 @@ import com.gpl.rpg.atcontentstudio.model.gamedata.Item;
 import com.gpl.rpg.atcontentstudio.ui.CollapsiblePanel;
 import com.gpl.rpg.atcontentstudio.ui.DefaultIcons;
 import com.gpl.rpg.atcontentstudio.ui.FieldUpdateListener;
+import com.gpl.rpg.atcontentstudio.ui.CustomListModel;
 import com.jidesoft.swing.JideBoxLayout;
 
 public class DroplistEditor extends JSONElementEditor {
@@ -148,65 +145,19 @@ public class DroplistEditor extends JSONElementEditor {
 		pane.repaint();
 	}
 	
-	public class DroppedItemsListModel implements ListModel<Droplist.DroppedItem> {
-		
-		Droplist source;
-		
+	public class DroppedItemsListModel extends CustomListModel<Droplist, DroppedItem> {
 		public DroppedItemsListModel(Droplist droplist) {
-			this.source = droplist;
+			super(droplist);
 		}
 
 		@Override
-		public int getSize() {
-			if (source.dropped_items == null) return 0;
-			return source.dropped_items.size();
-		}
-		
-		@Override
-		public Droplist.DroppedItem getElementAt(int index) {
-			if (source.dropped_items == null) return null;
-			return source.dropped_items.get(index);
-		}
-		
-		public void addItem(Droplist.DroppedItem item) {
-			if (source.dropped_items == null) {
-				source.dropped_items = new ArrayList<Droplist.DroppedItem>();
-			}
-			source.dropped_items.add(item);
-			int index = source.dropped_items.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.intervalAdded(new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, index, index));
-			}
-		}
-		
-		public void removeItem(Droplist.DroppedItem item) {
-			int index = source.dropped_items.indexOf(item);
-			source.dropped_items.remove(item);
-			if (source.dropped_items.isEmpty()) {
-				source.dropped_items = null;
-			}
-			for (ListDataListener l : listeners) {
-				l.intervalRemoved(new ListDataEvent(this, ListDataEvent.INTERVAL_REMOVED, index, index));
-			}
+		protected List<DroppedItem> getItems() {
+			return source.dropped_items;
 		}
 
-		public void itemChanged(Droplist.DroppedItem item) {
-			int index = source.dropped_items.indexOf(item);
-			for (ListDataListener l : listeners) {
-				l.contentsChanged(new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, index, index));
-			}
-		}
-		
-		List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
-		
 		@Override
-		public void addListDataListener(ListDataListener l) {
-			listeners.add(l);
-		}
-		
-		@Override
-		public void removeListDataListener(ListDataListener l) {
-			listeners.remove(l);
+		protected void setItems(List<DroppedItem> items) {
+			source.dropped_items = items;
 		}
 	}