diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/ToolsPanel.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/ToolsPanel.java
index d912080..3e36034 100644
--- a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/ToolsPanel.java
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/ToolsPanel.java
@@ -8,9 +8,9 @@ import com.allen_sauer.gwt.log.client.Log;
 import com.google.gwt.event.shared.EventBus;
 import com.sencha.gxt.core.client.util.Margins;
 import com.sencha.gxt.widget.core.client.ContentPanel;
+import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer;
+import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.BorderLayoutData;
 import com.sencha.gxt.widget.core.client.container.MarginData;
-import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
-import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
 
 /**
  * 
@@ -60,11 +60,12 @@ public class ToolsPanel extends ContentPanel {
 		if (first) {
 			expand();
 		} else {
-			
+
 		}
 	}
 
 	private void create() {
+
 		inputVariablePanel = new InputVariablePanel(eventBus);
 		explorerProjectPanel = new ExplorerProjectPanel(eventBus);
 
@@ -76,32 +77,37 @@ public class ToolsPanel extends ContentPanel {
 		 * appearance);
 		 * 
 		 * AccordionLayoutContainer accordion = new AccordionLayoutContainer();
-		 * accordion.setExpandMode(ExpandMode.MULTI);
+		 * accordion.setExpandMode(ExpandMode.SINGLE_FILL);
 		 * accordion.add(inputVariablePanel);
 		 * accordion.add(explorerProjectPanel);
 		 * accordion.setActiveWidget(inputVariablePanel);
+		 * 
+		 * add(accordion, new MarginData(new Margins(0)));
 		 */
+
 		/*
-		 * BoxLayoutData flex = new BoxLayoutData(new Margins(0, 0, 5, 0));
-		 * flex.setFlex(1);
+		 * VerticalLayoutContainer v = new VerticalLayoutContainer();
+		 * v.add(inputVariablePanel, new VerticalLayoutData(1, 0.5, new
+		 * Margins(0))); v.add(explorerProjectPanel, new VerticalLayoutData(1,
+		 * 0.5, new Margins( 0)));
 		 * 
-		 * BoxLayoutData flex2 = new BoxLayoutData(new Margins(0));
-		 * flex2.setFlex(3);
+		 * add(v, new MarginData(new Margins(0)));
 		 * 
-		 * VBoxLayoutContainer c = new VBoxLayoutContainer(); c.setPadding(new
-		 * Padding(5)); c.setVBoxLayoutAlign(VBoxLayoutAlign.STRETCH);
-		 * c.add(inputVariablePanel, flex); c.add(explorerProjectPanel, flex2);
+		 * forceLayout();
 		 */
 
-		VerticalLayoutContainer v = new VerticalLayoutContainer();
-		v.add(inputVariablePanel,
-				new VerticalLayoutData(1, 0.5, new Margins(0)));
-		v.add(explorerProjectPanel, new VerticalLayoutData(1, 0.5, new Margins(
-				0)));
+		MarginData centerData = new MarginData(0);
 
-		add(v, new MarginData(new Margins(0)));
+		BorderLayoutData southData = new BorderLayoutData(0.5);
+		southData.setMargins(new Margins(0));
+		southData.setCollapsible(true);
+		southData.setSplit(true);
 
-		forceLayout();
+		BorderLayoutContainer borderLayoutContainer = new BorderLayoutContainer();
+		borderLayoutContainer.setCenterWidget(inputVariablePanel, centerData);
+		borderLayoutContainer.setSouthWidget(explorerProjectPanel, southData);
+
+		add(borderLayoutContainer, new MarginData(new Margins(0)));
 
 	}
 
diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/explorer/ExplorerProjectPanel.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/explorer/ExplorerProjectPanel.java
index c7c5520..5a6809b 100644
--- a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/explorer/ExplorerProjectPanel.java
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/explorer/ExplorerProjectPanel.java
@@ -86,6 +86,7 @@ public class ExplorerProjectPanel extends ContentPanel {
 		setResize(true);
 		setAnimCollapse(false);
 		setHeadingText("Project Explorer");
+		
 
 	}