diff --git a/CobXmlSupport/GenCobCode.cs b/CobXmlSupport/GenCobCode.cs
index e185e0c..651e006 100644
--- a/CobXmlSupport/GenCobCode.cs
+++ b/CobXmlSupport/GenCobCode.cs
@@ -51,6 +51,14 @@ namespace CobXmlSupport
         public readonly string NOMOVE = "NoMove";
         private readonly bool MOVEFROM = true;
 
+        public string FldPref
+        {
+            get
+            {
+                return txtPrefix.Text;
+            }
+        }
+
         public List<CobRow> RowList
         {
             get { return rowList; }
@@ -165,7 +173,7 @@ namespace CobXmlSupport
 
         private void showRows()
         {
-            codeCompleter Cc = new codeCompleter(cmbLastFile.Text);
+            codeCompleter Cc = new codeCompleter(cmbLastFile.Text,txtPrefix.Text);
             Cc.TryFill_In_Dic();
             Cc.TryFill_Out_Dic();
             string fieldInCompl="", fieldOutCompl="";
@@ -1475,13 +1483,20 @@ namespace CobXmlSupport
                         fromMoves.CodeShower.Text += "( " + occParRows + " )";
                     }
                     fromMoves.CodeShower.Text += "\r\n           " + adjustIf(adj) + "TO ";
-                    if (cr.FieldDef.ToUpper().IndexOf("X") > -1)
+                    if (cr.MoveFromCode.Length > 0)
                     {
-                        fromMoves.CodeShower.Text += "MoveToStringVar ";
+                        fromMoves.CodeShower.Text += cr.MoveFromCode;
                     }
                     else
                     {
-                        fromMoves.CodeShower.Text += "MoveToNumVar ";
+                        if (cr.FieldDef.ToUpper().IndexOf("X") > -1)
+                        {
+                            fromMoves.CodeShower.Text += "MoveToStringVar ";
+                        }
+                        else
+                        {
+                            fromMoves.CodeShower.Text += "MoveToNumVar ";
+                        }
                     }
                     fromMoves.CodeShower.Text += " *> #" + cr.FieldName + "#";
                     if (chkDisplays.Checked)
diff --git a/CobXmlSupport/ShowCode.cs b/CobXmlSupport/ShowCode.cs
index 376d594..8ce5d36 100644
--- a/CobXmlSupport/ShowCode.cs
+++ b/CobXmlSupport/ShowCode.cs
@@ -92,7 +92,7 @@ namespace CobXmlSupport
 
         private void btnSynch_Click(object sender, EventArgs e)
         {
-            codeCompleter Cc = new codeCompleter(parentWindow.CmbLastFile.Text);
+            codeCompleter Cc = new codeCompleter(parentWindow.CmbLastFile.Text,parentWindow.FldPref);
             string fieldCompl = "";
             this.CodeShower.Text = " InPath = " + Cc.PathId + "\r\n InFile = " + Cc.FileId + "\r\n codeFile = " + Cc.CcFileInId + "\r\n codePath = " + Cc.PathId+Cc.CcFileInId + "\r\n -------------- \r\n" + this.CodeShower.Text;
             Cc.TryFill_In_Dic();
@@ -299,7 +299,7 @@ namespace CobXmlSupport
 
         private void btnSynchOut_Click(object sender, EventArgs e)
         {
-            codeCompleter Cc = new codeCompleter(parentWindow.CmbLastFile.Text);
+            codeCompleter Cc = new codeCompleter(parentWindow.CmbLastFile.Text,parentWindow.FldPref);
             string fieldCompl = "";
             this.CodeShower.Text = " InPath = " + Cc.PathId + "\r\n InFile = " + Cc.FileId + "\r\n codeFile = " + Cc.CcFileOutId + "\r\n codePath = " + Cc.PathId + Cc.CcFileOutId + "\r\n -------------- \r\n" + this.CodeShower.Text;
             Cc.TryFill_Out_Dic();
diff --git a/CobXmlSupport/codeCompleter.cs b/CobXmlSupport/codeCompleter.cs
index 03116a2..40ee19b 100644
--- a/CobXmlSupport/codeCompleter.cs
+++ b/CobXmlSupport/codeCompleter.cs
@@ -11,6 +11,7 @@ namespace CobXmlSupport
     {
         private Dictionary<string, string> __wrkDicIn = null;
         private Dictionary<string, string> __wrkDicOut = null;
+        private string __FieldPrefix;
         private string __filePathId;
         private string __fileId;
         private string __pathId;
@@ -22,6 +23,7 @@ namespace CobXmlSupport
 
         public codeCompleter()
         {
+            __FieldPrefix = "";
             __filePathId = "";
             __fileId = "";
             __pathId = "";
@@ -31,8 +33,9 @@ namespace CobXmlSupport
             __ccFileOutIdNoSuff = "";
         }
 
-        public codeCompleter(string pathFileId)
+        public codeCompleter(string pathFileId,string fpref)
         {
+            __FieldPrefix = fpref;
             __filePathId = pathFileId;
             nameCreator(__filePathId);
             __wrkDicIn = new Dictionary<string, string>();
@@ -81,12 +84,13 @@ namespace CobXmlSupport
 
         private void nameCreator(string inPathFname)
         {
+            string gPrefix = "." + __FieldPrefix.Replace("_", "").Trim();
             __fileId = inPathFname.Substring(inPathFname.LastIndexOf("\\") + 1);
             __pathId = inPathFname.Substring(0, inPathFname.LastIndexOf("\\") + 1);
-            __ccFileInId = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".In" + JSON;
-            __ccFileOutId = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".Out" + JSON;
-            __ccFileInIdNoSuff = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".In";
-            __ccFileOutIdNoSuff = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".Out";
+            __ccFileInId = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".In" + gPrefix + JSON;
+            __ccFileOutId = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".Out" + gPrefix + JSON;
+            __ccFileInIdNoSuff = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".In" + gPrefix;
+            __ccFileOutIdNoSuff = __fileId.Substring(0, __fileId.LastIndexOf(".")) + ".Out" + gPrefix;
         }
 
         private string backupSuffix()
@@ -149,7 +153,12 @@ namespace CobXmlSupport
         public void Save_In_Dic()
         {
             string ccFileInId = __pathId + __ccFileInId;
-            string ccFileInBackup = __pathId + __ccFileInIdNoSuff + backupSuffix();
+            if (Directory.Exists(__pathId + @"\JsonBackup\")) { }
+            else
+            {
+                Directory.CreateDirectory(__pathId + @"\JsonBackup\");
+            }
+            string ccFileInBackup = __pathId +@"\JsonBackup\"+ __ccFileInIdNoSuff + backupSuffix();
 
             if (__filePathId.Trim() == "") { }
             else
@@ -169,7 +178,12 @@ namespace CobXmlSupport
         public void Save_Out_Dic()
         {
             string ccFileOutId = __pathId + __ccFileOutId;
-            string ccFileOutBackup = __pathId + __ccFileOutIdNoSuff + backupSuffix();
+            if (Directory.Exists(__pathId + @"\JsonBackup\")) { }
+            else
+            {
+                Directory.CreateDirectory(__pathId + @"\JsonBackup\");
+            }
+            string ccFileOutBackup = __pathId + @"\JsonBackup\" + __ccFileOutIdNoSuff + backupSuffix();
 
             if (__filePathId.Trim() == "") { }
             else