diff --git a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/tr/column/ColumnMockUp.java b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/tr/column/ColumnMockUp.java
index e2ec03e..7054412 100644
--- a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/tr/column/ColumnMockUp.java
+++ b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/tr/column/ColumnMockUp.java
@@ -30,6 +30,31 @@ public class ColumnMockUp implements Serializable {
 
 	}
 
+	/**
+	 * Generic simple column with only ColumnDataType set
+	 * 
+	 * 
+	 * @param id
+	 * @param columnId
+	 * @param columnDataType
+	 * @param label
+	 */
+	public ColumnMockUp(String id, String columnId,
+			ColumnDataType columnDataType, String label) {
+		super();
+		this.id = id;
+		this.columnId = columnId;
+		this.columnType = null;
+		this.columnDataType = columnDataType;
+		this.defaultValue = null;
+		this.label = label;
+		this.localeName = null;
+		this.hasExpression = false;
+		this.expression = null;
+		this.timeDimensionType = null;
+		this.codelistColumnReference = null;
+	}
+	
 	
 	/**
 	 * ColumnMockUp