diff --git a/portal.ejb/src/main/java/org/vamdc/portal/session/queryBuilder/forms/RadiativeForm.java b/portal.ejb/src/main/java/org/vamdc/portal/session/queryBuilder/forms/RadiativeForm.java
index 64790aa..db5b633 100644
--- a/portal.ejb/src/main/java/org/vamdc/portal/session/queryBuilder/forms/RadiativeForm.java
+++ b/portal.ejb/src/main/java/org/vamdc/portal/session/queryBuilder/forms/RadiativeForm.java
@@ -28,12 +28,10 @@ public RadiativeForm(){
 		addField(wlField);
 		AbstractField field = new UnitConvRangeField(Restrictable.StateEnergy, "Upper state energy", new EnergyUnitConverter());
 		field.setPrefix("upper");
-		addField(field);
-		//addField(new RangeField("upper",Restrictable.StateEnergy,"Upper state energy"));
+		addField(field);;
 		field = new UnitConvRangeField(Restrictable.StateEnergy, "Lower state energy", new EnergyUnitConverter());
 		field.setPrefix("lower");
 		addField(field);
-		//addField(new RangeField("lower",Restrictable.StateEnergy,"Lower state energy"));
 		addField(new RangeField(Restrictable.RadTransProbabilityA,"Probability, A"));
 	}
 	
diff --git a/portal.ejb/src/main/java/org/vamdc/portal/session/queryLog/QueryStoreRequest.java b/portal.ejb/src/main/java/org/vamdc/portal/session/queryLog/QueryStoreRequest.java
index 577b7bf..0c84d0f 100644
--- a/portal.ejb/src/main/java/org/vamdc/portal/session/queryLog/QueryStoreRequest.java
+++ b/portal.ejb/src/main/java/org/vamdc/portal/session/queryLog/QueryStoreRequest.java
@@ -79,20 +79,18 @@ private QueryStoreResponse associateRequest(String token, String userIp) {
 		try {
 			String request = this.getRequest(token, this.getUserEmail(),
 					this.userIp);
-
 			// send request while no result or result is empty
 			while ((result == null || QueryStoreResponse.STATUS_EMPTY.equals(result.getStatus())) 
 					&& count < Settings.QUERYSTORE_MAX_RETRY.getInt()) {
 				result = this.doRequest(request);
+				//if(result != null)
 				Thread.sleep(Settings.QUERYSTORE_RETRY_TIMER.getInt());
 				count++;
 			}
-
 		} catch (Exception e) {		
 			log.debug(e);
-			new QueryStoreResponse(QueryStoreResponse.STATUS_ERROR, "", "Error while querying query store");
-
-		}		
+			result = new QueryStoreResponse(QueryStoreResponse.STATUS_ERROR, "", "Error while querying query store");
+		}	
 		return  result;
 	}
 
@@ -125,17 +123,14 @@ private QueryStoreResponse doRequest(String requestString)
 		//SSLHandShakeException (IOException) occurs if missing certificate
 		HttpResponse response = httpClient.execute(request);
 		Integer statusCode = response.getStatusLine().getStatusCode();
-		
 		if ( statusCode == 200) {
 			BufferedReader rd = new BufferedReader(new InputStreamReader(
 					response.getEntity().getContent()));
-
 			String uuid;
 			while ((uuid = rd.readLine()) != null) {
 				result.append(uuid);
 			}
 			rd.close();
-
 		} else {
 			// empty response
 			if (statusCode == 204) {
@@ -150,7 +145,6 @@ else if (statusCode >= 400 && statusCode < 500) {
 				return new QueryStoreResponse(QueryStoreResponse.STATUS_ERROR, "",  response.getStatusLine().getReasonPhrase());
 			}
 		}
-
 		// extract uuid from json response
 		return QueryStoreResponseReader.parseResponse(result.toString());
 	}
diff --git a/portal.war/src/main/webapp/layout/menu.xhtml b/portal.war/src/main/webapp/layout/menu.xhtml
index cbcad2d..9a030c1 100644
--- a/portal.war/src/main/webapp/layout/menu.xhtml
+++ b/portal.war/src/main/webapp/layout/menu.xhtml
@@ -23,6 +23,8 @@
 			propagation="none" />
 		<s:link id="menuHelp" view="/help.xhtml" value="Info"
 			propagation="none" />
+		<s:link id="menuTools" view="/tools.xhtml" value="Tools"
+			propagation="none" />
 	</rich:toolBarGroup>
 	<rich:toolBarGroup location="right">
 		<h:outputText value="Welcome, #{identity.username}!"
diff --git a/portal.war/src/main/webapp/tools.xhtml b/portal.war/src/main/webapp/tools.xhtml
new file mode 100644
index 0000000..cc87545
--- /dev/null
+++ b/portal.war/src/main/webapp/tools.xhtml
@@ -0,0 +1,33 @@
+<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<ui:composition xmlns="http://www.w3.org/1999/xhtml"
+	xmlns:s="http://jboss.com/products/seam/taglib"
+	xmlns:ui="http://java.sun.com/jsf/facelets"
+	xmlns:f="http://java.sun.com/jsf/core"
+	xmlns:h="http://java.sun.com/jsf/html"
+	xmlns:rich="http://richfaces.org/rich"
+	template="/layout/template.xhtml">
+
+	<ui:define name="body">
+		<h3>The VAMDC species database</h3>
+        <p>
+            <h:outputLink value="https://species.vamdc.eu" target="_blank">Discover the content of each database in the VAMDC infrastructure</h:outputLink>
+        </p>
+        <p>
+            <h:outputText
+                value="This website centralizes the list of species of all the databases in the VAMDC infrastructure. It provides search features to quickly
+                discover where a given species can be found and the type of provided data." />	
+        </p>
+        <h3>Hitran file display and comparison</h3>
+        <p>
+            <h:outputLink value="http://www.vamdc.org/hitran-display/" target="_blank">Plot data exported in HITRAN format</h:outputLink>
+        </p>
+        <p>
+            <h:outputText
+                value="The VAMDC Portal provides a web service to convert a XSAMS file containing spectroscopic molecular data into a file in HITRAN format.
+                The output of this web service can be visualized thanks to the web page above." />	
+		</p>
+
+
+	</ui:define>
+</ui:composition>