diff --git a/pom.xml b/pom.xml
index 57f432e..c83da1c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -114,6 +114,14 @@
 			<scope>provided</scope>
 		</dependency>
 
+		<!-- tabular-data-expression-widget -->
+		<dependency>
+			<groupId>org.gcube.portlets.user</groupId>
+			<artifactId>tabular-data-expression-widget</artifactId>
+			<version>[1.0.0-SNAPSHOT,2.0.0-SNAPSHOT)</version>
+			<scope>provided</scope>
+		</dependency>
+
 		<!-- tabular-data-column-widget -->
 		<dependency>
 			<groupId>org.gcube.portlets.user</groupId>
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml b/src/main/java/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
index 0e1633b..642af46 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
@@ -18,6 +18,8 @@
   <inherits name='com.sencha.gxt.ui.GXT' />
   <inherits name="com.allen_sauer.gwt.log.gwt-log-TRACE" />
   <inherits name='org.gcube.portlets.user.td.gwtservice.TDGWTService' />
+  <inherits
+		name='org.gcube.portlets.user.td.expressionwidget.ExpressionWidget' />
   <inherits name='org.gcube.portlets.user.td.columnwidget.ColumnWidget' />
   <inherits name='org.gcube.portlets.user.td.monitorwidget.MonitorWidgetTD' />
   
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geometry/GeometryCreatePointPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geometry/GeometryCreatePointPanel.java
index 85e1fbe..32694f5 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geometry/GeometryCreatePointPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geometry/GeometryCreatePointPanel.java
@@ -2,6 +2,7 @@ package org.gcube.portlets.user.td.tablewidget.client.geometry;
 
 import java.util.ArrayList;
 
+import org.gcube.portlets.user.td.expressionwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsFinalException;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
@@ -9,7 +10,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpire
 import org.gcube.portlets.user.td.gwtservice.shared.geometry.GeometryCreatePointSession;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialog;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialogListener;
-import org.gcube.portlets.user.td.columnwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/DownscaleCSquarePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/DownscaleCSquarePanel.java
index da2ec64..872794d 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/DownscaleCSquarePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/DownscaleCSquarePanel.java
@@ -2,6 +2,7 @@ package org.gcube.portlets.user.td.tablewidget.client.geospatial;
 
 import java.util.ArrayList;
 
+import org.gcube.portlets.user.td.expressionwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsFinalException;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
@@ -9,7 +10,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpire
 import org.gcube.portlets.user.td.gwtservice.shared.geospatial.GeospatialDownscaleCSquareSession;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialog;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialogListener;
-import org.gcube.portlets.user.td.columnwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/GeospatialCreateCoordinatesPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/GeospatialCreateCoordinatesPanel.java
index 0b5e90b..ca76159 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/GeospatialCreateCoordinatesPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/geospatial/GeospatialCreateCoordinatesPanel.java
@@ -2,6 +2,7 @@ package org.gcube.portlets.user.td.tablewidget.client.geospatial;
 
 import java.util.ArrayList;
 
+import org.gcube.portlets.user.td.expressionwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsFinalException;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
@@ -10,7 +11,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.geospatial.GeospatialCreateC
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialog;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialogListener;
 import org.gcube.portlets.user.td.columnwidget.client.geospatial.GeospatialCoordinatesTypePropertiesCombo;
-import org.gcube.portlets.user.td.columnwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
index 3c134c3..cdbe38a 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/normalize/DenormalizePanel.java
@@ -2,6 +2,7 @@ package org.gcube.portlets.user.td.tablewidget.client.normalize;
 
 import java.util.ArrayList;
 
+import org.gcube.portlets.user.td.expressionwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsFinalException;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
@@ -9,7 +10,6 @@ import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpire
 import org.gcube.portlets.user.td.gwtservice.shared.tr.normalization.DenormalizationSession;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialog;
 import org.gcube.portlets.user.td.monitorwidget.client.MonitorDialogListener;
-import org.gcube.portlets.user.td.columnwidget.client.properties.ColumnDataPropertiesCombo;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
diff --git a/src/main/resources/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml b/src/main/resources/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
index 210f36b..2e7ced5 100644
--- a/src/main/resources/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
+++ b/src/main/resources/org/gcube/portlets/user/td/tablewidget/TableWidget.gwt.xml
@@ -18,9 +18,11 @@
   <inherits name='com.sencha.gxt.ui.GXT' />
   <inherits name="com.allen_sauer.gwt.log.gwt-log-TRACE" />
   <inherits name='org.gcube.portlets.user.td.gwtservice.TDGWTService' />
-  <inherits name='org.gcube.portlets.user.td.columnwidget.ColumnWidget' />
-  <inherits name='org.gcube.portlets.user.td.monitorwidget.MonitorWidgetTD' />
+  <inherits
+		name='org.gcube.portlets.user.td.expressionwidget.ExpressionWidget' />
   
+  <inherits name='org.gcube.portlets.user.td.monitorwidget.MonitorWidgetTD' />		
+  <inherits name='org.gcube.portlets.user.td.columnwidget.ColumnWidget' />
   <!-- Specify the app entry point class.                         -->
   <!-- <entry-point class='org.gcube.portlets.user.td.sharewidget.client.TableWidgetEntry' /> -->