diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
index 8147064..2d58df9 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/SessionUtil.java
@@ -17,6 +17,7 @@ import org.gcube.portal.custom.scopemanager.scopehelper.ScopeHelper;
 import org.gcube.portlets.user.td.gwtservice.server.file.CSVFileUploadSession;
 import org.gcube.portlets.user.td.gwtservice.server.file.CodelistMappingFileUploadSession;
 import org.gcube.portlets.user.td.gwtservice.server.trservice.TRTasksManager;
+import org.gcube.portlets.user.td.gwtservice.shared.Constants;
 import org.gcube.portlets.user.td.gwtservice.shared.codelisthelper.CodelistMappingSession;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVImportSession;
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
index cca0c85..b70efe8 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/TDGWTServiceImpl.java
@@ -3683,6 +3683,8 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 	 * 
 	 * {@inheritDoc}
 	 */
+	
+	//TODO
 	public String startLabelColumn(LabelColumnSession labelColumnSession)
 			throws TDGWTServiceException {
 		try {
@@ -3700,23 +3702,21 @@ public class TDGWTServiceImpl extends RemoteServiceServlet implements
 			OpExecutionDirector director = new OpExecutionDirector();
 			director.setOperationExecutionBuilder(opEx);
 			director.constructOperationExecution();
-			OperationExecution invocation = director.getOperationExecution();
+			List<OperationExecution> invocations = director
+					.getListOperationExecution();
 
-			if (invocation == null) {
-				throw new TDGWTServiceException(
-						"Error Changing the Column Label: Operation not supported for now!");
+			if (invocations == null) {
+				throw new TDGWTServiceException("Operation not supported");
 			}
-
 			TabularResourceId serviceTR = new TabularResourceId(
-					Long.valueOf(labelColumnSession.getColumnData().getTrId()
+					Long.valueOf(labelColumnSession.getTrId()
 							.getId()));
-			logger.debug("OperationInvocation: \n" + invocation.toString());
-			Task trTask = service.execute(invocation, serviceTR);
+			logger.debug("OperationInvocation: \n" + invocations);
+			Task trTask = service.executeBatch(invocations, serviceTR);
 			logger.debug("Start Task on service: TaskId " + trTask.getId());
-
 			TaskWrapper taskWrapper = new TaskWrapper(trTask,
 					UIOperationsId.ChangeColumnLabel, labelColumnSession
-							.getColumnData().getTrId());
+							.getTrId());
 			SessionUtil.setTaskStarted(session, taskWrapper);
 
 			return trTask.getId().getValue();
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4LabelColumn.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4LabelColumn.java
index c597c65..f9d1e2c 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4LabelColumn.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/server/opexecution/OpExecution4LabelColumn.java
@@ -1,5 +1,6 @@
 package org.gcube.portlets.user.td.gwtservice.server.opexecution;
 
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -11,6 +12,7 @@ import org.gcube.portlets.user.td.gwtservice.server.trservice.OperationDefinitio
 import org.gcube.portlets.user.td.gwtservice.shared.Constants;
 import org.gcube.portlets.user.td.gwtservice.shared.OperationsId;
 import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
+import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.column.LabelColumnSession;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -37,24 +39,32 @@ public class OpExecution4LabelColumn extends OpExecutionBuilder {
 
 	@Override
 	public void buildOpEx() throws TDGWTServiceException {
-		OperationExecution invocation = null;
+		logger.debug("LabelColumnSession :" + labelColumnSession);
+		ArrayList<OperationExecution> invocations = new ArrayList<OperationExecution>();
 
-		logger.debug(labelColumnSession.toString());
-		OperationDefinition operationDefinition;
-		Map<String, Object> map = new HashMap<String, Object>();
+		HashMap<ColumnData, String> columnsMaps = labelColumnSession.getMaps();
 
-		ImmutableLocalizedText localizedText = new ImmutableLocalizedText(
-				labelColumnSession.getLabel());
+		for (ColumnData key : columnsMaps.keySet()) {
+			OperationExecution invocation = null;
 
-		map.put(Constants.NAME_PARAMETER_ID, localizedText);
+			OperationDefinition operationDefinition;
+			Map<String, Object> map = new HashMap<String, Object>();
 
-		operationDefinition = OperationDefinitionMap.map(
-				OperationsId.ColumnNameAdd.toString(), service);
+			ImmutableLocalizedText localizedText = new ImmutableLocalizedText(
+					columnsMaps.get(key));
 
-		invocation = new OperationExecution(labelColumnSession.getColumnData()
-				.getColumnId(), operationDefinition.getOperationId(), map);
-		
-		operationExecutionSpec.setOp(invocation);
+			map.put(Constants.NAME_PARAMETER_ID, localizedText);
+
+			operationDefinition = OperationDefinitionMap.map(
+					OperationsId.ColumnNameAdd.toString(), service);
+
+			invocation = new OperationExecution(key.getColumnId(),
+					operationDefinition.getOperationId(), map);
+
+			invocations.add(invocation);
+
+		}
+		operationExecutionSpec.setOps(invocations);
 
 	}
 
diff --git a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/column/LabelColumnSession.java b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/column/LabelColumnSession.java
index 153de12..a7bd7ab 100644
--- a/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/column/LabelColumnSession.java
+++ b/src/main/java/org/gcube/portlets/user/td/gwtservice/shared/tr/column/LabelColumnSession.java
@@ -1,43 +1,53 @@
 package org.gcube.portlets.user.td.gwtservice.shared.tr.column;
 
 import java.io.Serializable;
+import java.util.HashMap;
 
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
+import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 /**
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ * 
  */
 public class LabelColumnSession implements Serializable {
-	
+
 	private static final long serialVersionUID = -1896235499708614266L;
-	
-	protected ColumnData columnData;
-	protected String label;
-	
-	
-	public String getLabel() {
-		return label;
+
+	protected TRId trId;
+	protected HashMap<ColumnData, String> maps;
+
+	public LabelColumnSession() {
+
 	}
-	public void setLabel(String label) {
-		this.label = label;
+
+	public LabelColumnSession(TRId trId, HashMap<ColumnData, String> maps) {
+		super();
+		this.trId = trId;
+		this.maps = maps;
 	}
-	public ColumnData getColumnData() {
-		return columnData;
+
+	public TRId getTrId() {
+		return trId;
 	}
-	public void setColumnData(ColumnData columnData) {
-		this.columnData = columnData;
+
+	public void setTrId(TRId trId) {
+		this.trId = trId;
 	}
-	
+
+	public HashMap<ColumnData, String> getMaps() {
+		return maps;
+	}
+
+	public void setMaps(HashMap<ColumnData, String> maps) {
+		this.maps = maps;
+	}
+
 	@Override
 	public String toString() {
-		return "LabelColumnSession [columnData=" + columnData + ", label="
-				+ label + "]";
+		return "LabelColumnSession [trId=" + trId + ", maps=" + maps + "]";
 	}
-	
-	
-	
-	
+
 }