diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
index e67bc5c..da36e2d 100644
--- a/.settings/org.eclipse.wst.common.component
+++ b/.settings/org.eclipse.wst.common.component
@@ -67,6 +67,9 @@
         <dependent-module archiveName="tabular-data-unionwizard-widget-1.0.0-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/tabular-data-unionwizard-widget/tabular-data-unionwizard-widget">
             <dependency-type>uses</dependency-type>
         </dependent-module>
+        <dependent-module archiveName="tabular-data-column-operation-1.1.1-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/tabular-data-column-operation/tabular-data-column-operation">
+            <dependency-type>uses</dependency-type>
+        </dependent-module>
         <property name="java-output-path" value="/tabular-data-portlet/target/tabular-data-portlet-2.3.0-SNAPSHOT/WEB-INF/classes"/>
         <property name="context-root" value="tabular-data-portlet"/>
     </wb-module>
diff --git a/src/main/java/org/gcube/portlets/user/td/client/ribbon/FileToolBar.java b/src/main/java/org/gcube/portlets/user/td/client/ribbon/FileToolBar.java
index bcc22f4..0d66890 100644
--- a/src/main/java/org/gcube/portlets/user/td/client/ribbon/FileToolBar.java
+++ b/src/main/java/org/gcube/portlets/user/td/client/ribbon/FileToolBar.java
@@ -501,7 +501,7 @@ public class FileToolBar {
 		helpLayout.setWidget(0, 0, helpButton);
 		helpLayout.getFlexCellFormatter().setRowSpan(0, 0, 2);
 		
-		
+		/*
 		logsButton = new TextButton("Logs",
 				TabularDataResources.INSTANCE.logs32());
 		logsButton.enable();
@@ -518,7 +518,7 @@ public class FileToolBar {
 
 		helpLayout.setWidget(0, 1, logsButton);
 		helpLayout.getFlexCellFormatter().setRowSpan(0, 1, 2);
-		
+		*/
 		
 		cleanCells(helpLayout.getElement());
 
diff --git a/src/main/webapp/WEB-INF/classes/logback.xml b/src/main/webapp/WEB-INF/classes/logback_xml_sample
similarity index 100%
rename from src/main/webapp/WEB-INF/classes/logback.xml
rename to src/main/webapp/WEB-INF/classes/logback_xml_sample