diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/BatchReplacePanel.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/BatchReplacePanel.java
index 3bea304..e141cce 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/BatchReplacePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/BatchReplacePanel.java
@@ -4,7 +4,6 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.columnwidget.client.custom.ActionButtonCell;
-import org.gcube.portlets.user.td.columnwidget.client.dimension.DimensionRowSelectionDialog;
 import org.gcube.portlets.user.td.columnwidget.client.dimension.DimensionRow;
 import org.gcube.portlets.user.td.columnwidget.client.dimension.DimensionRowSelectionListener;
 import org.gcube.portlets.user.td.columnwidget.client.resources.ResourceBundle;
@@ -14,15 +13,15 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.batch.Occurences;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
-import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
-import com.google.gwt.cell.client.AbstractCell;
 import com.allen_sauer.gwt.log.client.Log;
+import com.google.gwt.cell.client.AbstractCell;
 import com.google.gwt.cell.client.Cell.Context;
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
 import com.google.gwt.dom.client.Style.Unit;
 import com.google.gwt.safecss.shared.SafeStylesBuilder;
+import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.web.bindery.event.shared.EventBus;
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntry.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntry.java
index 689002d..b0a9ccf 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntry.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntry.java
@@ -1,16 +1,24 @@
 package org.gcube.portlets.user.td.columnwidget.client.batch;
 
+import java.io.Serializable;
+
 import org.gcube.portlets.user.td.columnwidget.client.dimension.DimensionRow;
 
 
-class ReplaceEntry {
-
+public class ReplaceEntry implements Serializable {
+	
+	private static final long serialVersionUID = 1630393311734647924L;
+	
 	protected String value;
 	protected Integer number;
 	protected String replacementValue;
 	protected DimensionRow replacementDimensionRow;
 	
-
+	public ReplaceEntry(){
+		
+	}
+	
+	
 	/**
 	 * @param errorValue
 	 * @param replacementValue
diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntryProperties.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntryProperties.java
index 458a013..80683da 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntryProperties.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/batch/ReplaceEntryProperties.java
@@ -3,6 +3,8 @@
  */
 package org.gcube.portlets.user.td.columnwidget.client.batch;
 
+import org.gcube.portlets.user.td.columnwidget.client.dimension.DimensionRow;
+
 import com.google.gwt.editor.client.Editor.Path;
 import com.sencha.gxt.core.client.ValueProvider;
 import com.sencha.gxt.data.shared.ModelKeyProvider;
@@ -22,6 +24,6 @@ public interface ReplaceEntryProperties extends PropertyAccess<ReplaceEntry> {
 	ValueProvider<ReplaceEntry, String> value();
 	ValueProvider<ReplaceEntry, Integer> number();
 	ValueProvider<ReplaceEntry, String> replacementValue();
-	ValueProvider<ReplaceEntry, String> replacementDimensionRow();
+	ValueProvider<ReplaceEntry, DimensionRow> replacementDimensionRow();
 	
 }