diff --git a/LSL2/OIEVENT/CHANGED/PROD_SPEC_SI4.TOOL.json b/LSL2/OIEVENT/CHANGED/PROD_SPEC_SI4.TOOL.json
index e6d7903..84ed024 100644
--- a/LSL2/OIEVENT/CHANGED/PROD_SPEC_SI4.TOOL.json
+++ b/LSL2/OIEVENT/CHANGED/PROD_SPEC_SI4.TOOL.json
@@ -5,7 +5,7 @@
     },
     "body": {
         "record1": {
-            "<1>": "declare function prod_spec_comm\r\ndeclare subroutine forward_event\r\n\r\nforward_event(NewData)\r\nVoid = prod_spec_comm( \"LOAD_TOOL_RECIPE\" )\r\nRETURN 0\r\n"
+            "<1>": "declare function prod_spec_comm\r\ndeclare subroutine forward_event\r\n\r\nforward_event(NewData)\r\nVoid = prod_spec_comm( \"LOAD_TOOL_RECIPE\" )\r\nVoid = prod_spec_comm( \"LOAD_TOOL_PATTERN\" )\r\nRETURN 0\r\n"
         }
     }
 }
\ No newline at end of file
diff --git a/LSL2/OIEVENT/CREATE/PROD_SPEC_SI4..json b/LSL2/OIEVENT/CREATE/PROD_SPEC_SI4..json
index 26f8b24..5cfe2cd 100644
--- a/LSL2/OIEVENT/CREATE/PROD_SPEC_SI4..json
+++ b/LSL2/OIEVENT/CREATE/PROD_SPEC_SI4..json
@@ -5,7 +5,7 @@
     },
     "body": {
         "record1": {
-            "<1>": "$INSERT RECIPE_EQU\r\n\r\nDECLARE SUBROUTINE Set_List_Box_data, Set_Property\r\nDECLARE FUNCTION Center_Window, Prod_Spec_Comm\r\n\r\nEQU MI$TOOL\t\t\tTO 1\r\nEQU MI$TYPE\t\t\tTO 2\r\nEQU MI$RECIPE\t\tTO 3\r\nEQU MI$FREQ\t\t\tTO 4\r\nEQU MI$PROVE_TYPE\tTO 5\r\nEQU MI$FIRST_CHECK\tTO 6\r\nEQU MI$LAST_CHECK\tTO 7\r\nEQU MI$SPC\t\t\tTO 8\r\nEQU MI$OVERGROW\t\tTO 9\r\nEQU MI$EXP_TW_QTY\tTO 10\r\nEQU MI$PATTERN\t\tTO 11\r\n\r\nIF INDEX( CreateParam, 'CENTER', 1 ) THEN\r\n    void = center_window( @window )\r\nEND ELSE\r\n    Void = Set_Property( @window, 'VISIBLE', 1 )\r\nEND\r\n\r\nMeasureInfo\t= FIELD( CreateParam, CHAR(245), 1 )\t\t;* 1st passed parameter\r\n\r\nCtrls  = @WINDOW:'.TOOL':@RM\t\t\t\t; Props  = 'TEXT':@RM\t\t; Vals  = FIELD(MeasureInfo,'~',MI$TOOL):@RM\r\nCtrls := @WINDOW:'.TYPE':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$TYPE):@RM\r\nCtrls := @WINDOW:'.RECIPE':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$RECIPE):@RM\r\nCtrls := @WINDOW:'.FREQ':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$FREQ):@RM\r\nCtrls := @WINDOW:'.PROVE_TYPE':@RM\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$PROVE_TYPE):@RM\r\nCtrls := @WINDOW:'.FIRST_CHECK':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$FIRST_CHECK):@RM\r\nCtrls := @WINDOW:'.LAST_CHECK':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$LAST_CHECK):@RM\r\nCtrls := @WINDOW:'.SPC':@RM\t\t\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$SPC):@RM\r\nCtrls := @WINDOW:'.OVERGROW':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$OVERGROW):@RM\r\nCtrls := @WINDOW:'.EXPECTED_TW_QTY':@RM\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$EXP_TW_QTY):@RM\r\nCtrls := @WINDOW:'.PATTERN'\t\t\t\t\t; Props := 'TEXT'\t\t\t; Vals := FIELD(MeasureInfo,'~',MI$PATTERN)\r\n\r\nSet_Property(Ctrls,Props,Vals)\r\nSet_Property(@WINDOW, '@Controls',Ctrls)\r\nSet_Property(@WINDOW, '@Props',Props)\r\n\r\nType = FIELD(CreateParam,CHAR(245),2)\t\t;* 2nd passed parameter\r\n\r\nIF Type = 'RES' THEN\r\n\tvoid = Set_Property(@WINDOW:'.OVERGROW','VISIBLE',1)\r\nEND ELSE\r\n\tvoid = Set_Property(@WINDOW:'.OVERGROW','VISIBLE',0)\r\nEND\r\n\r\nTypeOut = FIELD(CreateParam,CHAR(245),3)\t\t\t;* 3rd passed parameter\r\n\r\nTitle = Get_Property(@WINDOW,'TEXT')\r\nTitle := TypeOut:' ':Title\r\nSet_Property(@WINDOW,'TEXT',Title)\r\n\r\nSet_List_Box_Data(CtrlEntId)\r\n\r\n\r\nToolList = XLATE('LISTBOX_CONFIG',Type:'MEASURETOOL','','X')\r\nCONVERT @VM TO @FM IN ToolList\r\nSet_Property(@WINDOW:'.TOOL','LIST',ToolList)\r\n\r\nTool = Get_Property(@WINDOW:'.TOOL', 'TEXT' )\r\nCONVERT @LOWER_CASE TO @UPPER_CASE IN Tool\r\n\r\nRecipeList = XLATE( 'LISTBOX_CONFIG', Tool:'_RECIPES', '', 'X' )\r\nCONVERT @VM To @FM IN RecipeList\r\n\r\nIF RecipeList NE '' THEN\r\n\tSet_Property(@WINDOW:'.RECIPE','LIST',RecipeList)\r\nEND\r\n\r\nRETURN 1\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n"
+            "<1>": "$INSERT RECIPE_EQU\r\n$insert TOOL_CLASS_EQUATES\r\n\r\nDECLARE SUBROUTINE Set_List_Box_data, Set_Property\r\nDECLARE FUNCTION Center_Window, Prod_Spec_Comm\r\n\r\nEQU MI$TOOL\t\t\tTO 1\r\nEQU MI$TYPE\t\t\tTO 2\r\nEQU MI$RECIPE\t\tTO 3\r\nEQU MI$FREQ\t\t\tTO 4\r\nEQU MI$PROVE_TYPE\tTO 5\r\nEQU MI$FIRST_CHECK\tTO 6\r\nEQU MI$LAST_CHECK\tTO 7\r\nEQU MI$SPC\t\t\tTO 8\r\nEQU MI$OVERGROW\t\tTO 9\r\nEQU MI$EXP_TW_QTY\tTO 10\r\nEQU MI$PATTERN\t\tTO 11\r\n\r\nIF INDEX( CreateParam, 'CENTER', 1 ) THEN\r\n    void = center_window( @window )\r\nEND ELSE\r\n    Void = Set_Property( @window, 'VISIBLE', 1 )\r\nEND\r\n\r\nMeasureInfo\t= FIELD( CreateParam, CHAR(245), 1 )\t\t;* 1st passed parameter\r\n\r\nCtrls  = @WINDOW:'.TOOL':@RM\t\t\t\t; Props  = 'TEXT':@RM\t\t; Vals  = FIELD(MeasureInfo,'~',MI$TOOL):@RM\r\nCtrls := @WINDOW:'.TYPE':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$TYPE):@RM\r\nCtrls := @WINDOW:'.RECIPE':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$RECIPE):@RM\r\nCtrls := @WINDOW:'.FREQ':@RM\t\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$FREQ):@RM\r\nCtrls := @WINDOW:'.PROVE_TYPE':@RM\t\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$PROVE_TYPE):@RM\r\nCtrls := @WINDOW:'.FIRST_CHECK':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$FIRST_CHECK):@RM\r\nCtrls := @WINDOW:'.LAST_CHECK':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$LAST_CHECK):@RM\r\nCtrls := @WINDOW:'.SPC':@RM\t\t\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$SPC):@RM\r\nCtrls := @WINDOW:'.OVERGROW':@RM\t\t\t; Props := 'CHECK':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$OVERGROW):@RM\r\nCtrls := @WINDOW:'.EXPECTED_TW_QTY':@RM\t\t; Props := 'TEXT':@RM\t\t; Vals := FIELD(MeasureInfo,'~',MI$EXP_TW_QTY):@RM\r\nCtrls := @WINDOW:'.PATTERN'\t\t\t\t\t; Props := 'TEXT'\t\t\t; Vals := FIELD(MeasureInfo,'~',MI$PATTERN)\r\n\r\nSet_Property(Ctrls,Props,Vals)\r\nSet_Property(@WINDOW, '@Controls',Ctrls)\r\nSet_Property(@WINDOW, '@Props',Props)\r\n\r\nType = FIELD(CreateParam,CHAR(245),2)\t\t;* 2nd passed parameter\r\n\r\nIF Type = 'RES' THEN\r\n\tvoid = Set_Property(@WINDOW:'.OVERGROW','VISIBLE',1)\r\nEND ELSE\r\n\tvoid = Set_Property(@WINDOW:'.OVERGROW','VISIBLE',0)\r\nEND\r\n\r\nTypeOut = FIELD(CreateParam,CHAR(245),3)\t\t\t;* 3rd passed parameter\r\n\r\nTitle = Get_Property(@WINDOW,'TEXT')\r\nTitle := TypeOut:' ':Title\r\nSet_Property(@WINDOW,'TEXT',Title)\r\n\r\nToolList = XLATE('LISTBOX_CONFIG',Type:'MEASURETOOL','','X')\r\nCONVERT @VM TO @FM IN ToolList\r\nSet_Property(@WINDOW:'.TOOL','LIST',ToolList)\r\n\r\nTool = Get_Property(@WINDOW:'.TOOL', 'TEXT' )\r\nCONVERT @LOWER_CASE TO @UPPER_CASE IN Tool\r\n\r\nRecipeList = XLATE( 'TOOL_CLASS', Tool, TOOL_CLASS_RECIPES$, 'X' )\r\nCONVERT @VM To @FM IN RecipeList\r\n\r\nIF RecipeList NE '' THEN\r\n\tSet_Property(@WINDOW:'.RECIPE','LIST',RecipeList)\r\nEnd\r\n\r\nPatternList = Xlate('TOOL_CLASS', Tool, TOOL_CLASS_PATTERN$, 'X')\r\nCONVERT @VM To @FM IN PatternList\r\n\r\nIf PatternList Ne '' Then\r\n     Set_Property(@Window:'.PATTERN', 'LIST', PatternList)\r\nEnd\r\n\r\nRETURN 1\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n"
         }
     }
 }
\ No newline at end of file
diff --git a/LSL2/STPROC/PROD_SPEC_COMM.txt b/LSL2/STPROC/PROD_SPEC_COMM.txt
index 278790e..51f5192 100644
--- a/LSL2/STPROC/PROD_SPEC_COMM.txt
+++ b/LSL2/STPROC/PROD_SPEC_COMM.txt
@@ -11,6 +11,7 @@ $insert recipe_layer_info_equ
 $insert msg_equates
 $insert logical
 $insert shipping_info_equ
+$insert TOOL_CLASS_EQUATES
 
 equ CrLf$ to char(13):char(10)
 
@@ -19,10 +20,10 @@ declare function memberof, scroll_enable
 ReturnVar = 0
 declare function set_property, fieldcount, get_property, msg, editcell, send_event, dialog_box
 declare subroutine create_note
-Branches = 'LOAD_SURFACE_DEF,SET_MEASURE,LOAD_TOOL_RECIPE,SURFSCAN_CLICK,VALIDATE_DOPANT,VALIDATE_MINMAX,SET_SCANNED_IMAGE,VALIDATE_RECIPE,AKRION_RECIPE_CHECK,TW_TYPE_CHECK'
+Branches = 'LOAD_SURFACE_DEF,SET_MEASURE,LOAD_TOOL_RECIPE,LOAD_TOOL_PATTERN,SURFSCAN_CLICK,VALIDATE_DOPANT,VALIDATE_MINMAX,SET_SCANNED_IMAGE,VALIDATE_RECIPE,AKRION_RECIPE_CHECK,TW_TYPE_CHECK'
 convert ',' to @fm in Branches
 locate Branch in Branches using @fm setting Bpos then
-   on Bpos gosub load_surface_def, set_measure, load_tool_recipe, surfscan_click, validate_dopant, validate_minmax, set_scanned_image, validate_recipe, akrion_recipe_check, tw_type_check
+   on Bpos gosub load_surface_def, set_measure, load_tool_recipe, load_tool_pattern, surfscan_click, validate_dopant, validate_minmax, set_scanned_image, validate_recipe, akrion_recipe_check, tw_type_check
 end else
    Void = msg( '', 'Invalid Branch ':Bpos:' passed to prod_spec_comm' )
 end
@@ -111,13 +112,24 @@ return
 LOAD_TOOL_RECIPE:
    Tool = get_property( @window:'.TOOL', 'TEXT' )
    convert @lower_case to @upper_case in Tool
-	RecipeList = xlate( 'LISTBOX_CONFIG', Tool:'_RECIPES', '', 'X' )
+	RecipeList = xlate( 'TOOL_CLASS', Tool, TOOL_CLASS_RECIPES$, 'X' )
 	convert @vm to @fm in RecipeList
 	if RecipeList <> '' then
 	   Void = set_property( @window:'.RECIPE', 'LIST', RecipeList )
 	end
 return
 *============================================================================*
+*============================================================================*
+LOAD_TOOL_PATTERN:
+   Tool = get_property( @window:'.TOOL', 'TEXT' )
+   convert @lower_case to @upper_case in Tool
+	PatternList = Xlate('TOOL_CLASS', Tool, TOOL_CLASS_PATTERN$, 'X')
+	CONVERT @VM To @FM IN PatternList
+	If PatternList Ne '' Then
+		 Void = Set_Property(@Window:'.PATTERN', 'LIST', PatternList)
+	End
+return
+*============================================================================*
 SURFSCAN_CLICK:
    CtrlToUse = get_property( @window, '@SurfScanCtl' )
    if get_property( @window:'.':CtrlToUse, 'CHECK' ) then