diff --git a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/GridHeaderOperationId.java b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/GridHeaderOperationId.java
index 3ee8b1c..d2c8b72 100644
--- a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/GridHeaderOperationId.java
+++ b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/GridHeaderOperationId.java
@@ -11,11 +11,13 @@ public enum GridHeaderOperationId {
 		COLUMNLABEL("4"),
 		COLUMNADD("5"),
 		COLUMNDELETE("6"),
-		COLUMNTYPE("7"),
-		COLUMNFILTER("8"),
-		COLUMNBATCHREPLACE("9"),
-		ANNOTATIONADD("10"),
-		DUPLICATEDETECTION("11");		
+		COLUMNSPLIT("7"),
+		COLUMNMERGE("8"),
+		COLUMNTYPE("9"),
+		COLUMNFILTER("10"),
+		COLUMNBATCHREPLACE("11"),
+		ANNOTATIONADD("12"),
+		DUPLICATEDETECTION("13");		
 		
 		/**
 		 * @param text