diff --git a/PROMS/Volian.Controls.Library/vlnTreeView.cs b/PROMS/Volian.Controls.Library/vlnTreeView.cs
index a597a112..0fe12659 100644
--- a/PROMS/Volian.Controls.Library/vlnTreeView.cs
+++ b/PROMS/Volian.Controls.Library/vlnTreeView.cs
@@ -18,7 +18,8 @@ namespace Volian.Controls.Library
 {
 	#region DelegatesAndEventArgs
 	public delegate void vlnTreeViewEvent(object sender, vlnTreeEventArgs args);
-	public delegate void vlnTreeViewItemInfoEvent(object sender, vlnTreeItemInfoEventArgs args);
+  public delegate ItemInfo vlnTreeViewClipboardStatusEvent(object sender, vlnTreeEventArgs args);
+  public delegate void vlnTreeViewItemInfoEvent(object sender, vlnTreeItemInfoEventArgs args);
 	public delegate bool vlnTreeViewBoolEvent(object sender, vlnTreeEventArgs args);
 	public delegate bool vlnTreeViewItemInfoDeleteEvent(object sender, vlnTreeItemInfoEventArgs args);
 	public delegate bool vlnTreeViewItemInfoInsertEvent(object sender, vlnTreeItemInfoInsertEventArgs args);
@@ -363,6 +364,13 @@ namespace Volian.Controls.Library
 		{
 			if (NodeMove != null) NodeMove(sender, args);
 		}
+    public event vlnTreeViewClipboardStatusEvent ClipboardStatus;
+    private ItemInfo OnClipboardStatus(object sender, vlnTreeEventArgs args)
+    {
+      ItemInfo rv = null;
+      if (ClipboardStatus != null) rv = ClipboardStatus(sender, args);
+      return rv;
+    }
 		public event vlnTreeViewEvent NodeCopy;
 		private void OnNodeCopy(object sender, vlnTreeEventArgs args)
 		{
@@ -1048,18 +1056,9 @@ namespace Volian.Controls.Library
 		{
 			#region MenuPaste
 			// Find what's in paste buffer & determine whether the paste can occur for the selected node.
-			object tmpClip = Clipboard.GetData("PromsClipboard");
-			if (tmpClip != null)
-			{
-				PromsClipboard tstClip = (PromsClipboard)tmpClip;
-				ItemInfo iiClipboard = ItemInfo.Get(tstClip.itemId);
-				// if the item doesn't exist anymore, don't allow the paste, by not adding
-				// paste menu items to context menu.
-				if (iiClipboard == null)
-				{
-					Clipboard.Clear();
-					return;
-				}
+      ItemInfo iiClipboard = OnClipboardStatus(this,new vlnTreeEventArgs(tn));
+      if(iiClipboard != null)
+      {
 				// can it be pasted at current node.
 				if (tn.VEObject as DocVersionInfo != null)		// paste item must be a proc
 				{
@@ -1068,12 +1067,13 @@ namespace Volian.Controls.Library
 				else
 				{
 					ItemInfo iiPasteHere = tn.VEObject as ItemInfo;
+          bool okToReplace = iiClipboard.ItemID != iiPasteHere.ItemID;
 					if (iiPasteHere != null)
 					{
 						if (iiPasteHere.IsProcedure && iiClipboard.IsProcedure)	// procedure can be pasted before/replace/after
 						{
 							cm.MenuItems.Add("Paste Procedure Before", new EventHandler(mi_Click));
-							cm.MenuItems.Add("Replace Existing Procedure", new EventHandler(mi_Click));
+              if (okToReplace) cm.MenuItems.Add("Replace Existing Procedure", new EventHandler(mi_Click));
 							cm.MenuItems.Add("Paste Procedure After", new EventHandler(mi_Click));
 						}
 						else if (iiPasteHere.IsProcedure && iiClipboard.IsSection)  // procedure must have sections only
@@ -1081,7 +1081,7 @@ namespace Volian.Controls.Library
 						else if (iiPasteHere.IsSection && iiClipboard.IsSection)
 						{
 							cm.MenuItems.Add("Paste Section Before", new EventHandler(mi_Click));
-							cm.MenuItems.Add("Replace Existing Section", new EventHandler(mi_Click));
+              if (okToReplace) cm.MenuItems.Add("Replace Existing Section", new EventHandler(mi_Click));
 							cm.MenuItems.Add("Paste Section After", new EventHandler(mi_Click));
 						}
 						else if (iiPasteHere.IsStepSection && iiClipboard.IsStep)
@@ -1089,7 +1089,7 @@ namespace Volian.Controls.Library
 						else if (iiPasteHere.IsStep && iiClipboard.IsStep)
 						{
 							if (AddToInsertMenu(iiPasteHere, 0)) cm.MenuItems.Add("Paste Step Before", new EventHandler(mi_Click));
-							cm.MenuItems.Add("Replace Existing Step", new EventHandler(mi_Click));
+              if (okToReplace) cm.MenuItems.Add("Replace Existing Step", new EventHandler(mi_Click));
 							if (AddToInsertMenu(iiPasteHere, 1)) cm.MenuItems.Add("Paste Step After", new EventHandler(mi_Click));
 						}
 					}
@@ -1439,11 +1439,8 @@ namespace Volian.Controls.Library
 		}
 		private void tv_NodePaste(string p)
 		{
-			object oClip = Clipboard.GetData("PromsClipboard");
-			if (oClip == null) return;
-
-			PromsClipboard iClip = (PromsClipboard) oClip;
-			ItemInfo iiClipboard = ItemInfo.Get(iClip.itemId);
+      ItemInfo iiClipboard = OnClipboardStatus(this, null);
+      if (iiClipboard == null) return;
 			string message = string.Empty;
 			if (iiClipboard.MyContent.MyEntry == null)
 			{
@@ -1470,12 +1467,12 @@ namespace Volian.Controls.Library
 
 			ItemInfo iiPaste = tn.VEObject as ItemInfo;
 			if (iiPaste == null) return;
-			if (p.IndexOf("Before") > -1)
-				PasteBeforeOrAfter(MenuSelections.StepBefore, tn, iiClipboard.ItemID);
-			else if (p.IndexOf("After") > -1)
-				PasteBeforeOrAfter(MenuSelections.StepAfter, tn, iiClipboard.ItemID);
-			else if (p.IndexOf("Replace") > -1)
-				PasteReplace(tn, iiClipboard.ItemID);
+      if (p.IndexOf("Before") > -1)
+        PasteBeforeOrAfter(MenuSelections.StepBefore, tn, iiClipboard.ItemID);
+      else if (p.IndexOf("After") > -1)
+        PasteBeforeOrAfter(MenuSelections.StepAfter, tn, iiClipboard.ItemID);
+      else if (p.IndexOf("Replace") > -1)
+        PasteReplace(tn, iiClipboard.ItemID);
 		}
 		private void PasteBeforeOrAfter(MenuSelections newtype, VETreeNode tn, int copyStartID)
 		{
@@ -1512,20 +1509,7 @@ namespace Volian.Controls.Library
 		{
 			if (SelectedNode==null)return;
 			VETreeNode tn = SelectedNode as VETreeNode;
-			ItemInfo ii = tn.VEObject as ItemInfo;
-			if (ii != null)
-			{
-				Clipboard.Clear();
-				PromsClipboard iClip;
-				iClip.itemId = ii.ItemID;
-				iClip.cType = (int)PromsClipboardType.Copy;
-				DataObject myDO = new DataObject();
-				myDO.SetText(ii.DisplayNumber==null||ii.DisplayNumber==""?" ":ii.DisplayNumber);
-				myDO.SetData("PromsClipboard", iClip);
-				Clipboard.SetDataObject(myDO);
-				//Clipboard.SetData("PromsClipboard", iClip);
-				//Clipboard.SetData(DataFormats.Text, ii.DisplayNumber);
-			}
+      OnNodeCopy(this, new vlnTreeEventArgs(tn));
 		}
 		#endregion
 		#region PropertyPagesInterface