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 e658e37..0fc6bb9 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
@@ -18,7 +18,8 @@ public enum GridHeaderOperationId {
 		COLUMNBATCHREPLACE("11"),
 		ANNOTATIONADD("12"),
 		DUPLICATEDETECTION("13"),
-		COLUMNREPLACEBYEXPRESSION("14");		
+		COLUMNREPLACEBYEXPRESSION("14"),
+		COLUMNREPLACEBYEXTERNAL("15");		
 		
 		/**
 		 * @param text