diff --git a/sample-app/sampleapp-components/js/general-action-functions.js b/sample-app/sampleapp-components/js/general-action-functions.js
index d02b691..597885c 100644
--- a/sample-app/sampleapp-components/js/general-action-functions.js
+++ b/sample-app/sampleapp-components/js/general-action-functions.js
@@ -240,6 +240,33 @@ var generalActionFunctions = {
       }
     }
     
+    return result;
+  },
+  showAndPerformIncrementalLayout: function(param) {
+    var eles = param.eles;
+    
+    var result = {};
+    result.positionAndSizes = generalActionFunctions.getNodePositionsAndSizes();
+    result.eles = eles.showEles();
+    
+    if(param.positionAndSizes) {
+      generalActionFunctions.returnToPositionsAndSizes(param.positionAndSizes);
+    }
+    else {
+      triggerIncrementalLayout();
+    }
+    
+    return result;
+  },
+  undoShowAndPerformIncrementalLayout: function(param) {
+    var eles = param.eles;
+    
+    var result = {};
+    result.positionAndSizes = generalActionFunctions.getNodePositionsAndSizes();
+    result.eles = eles.hideEles();
+    
+    generalActionFunctions.returnToPositionsAndSizes(param.positionAndSizes);
+    
     return result;
   }
 };
\ No newline at end of file
diff --git a/sample-app/sampleapp-components/js/register-undo-redo-actions.js b/sample-app/sampleapp-components/js/register-undo-redo-actions.js
index 250007a..f277b47 100644
--- a/sample-app/sampleapp-components/js/register-undo-redo-actions.js
+++ b/sample-app/sampleapp-components/js/register-undo-redo-actions.js
@@ -26,6 +26,7 @@ var registerUndoRedoActions = function () {
   ur.action("changeStyleCss", generalActionFunctions.changeStyleCss, generalActionFunctions.changeStyleCss);
   ur.action("changeBendPoints", generalActionFunctions.changeBendPoints, generalActionFunctions.changeBendPoints);
   ur.action("changeFontProperties", generalActionFunctions.changeFontProperties, generalActionFunctions.changeFontProperties);
+  ur.action("showAndPerformIncrementalLayout", generalActionFunctions.showAndPerformIncrementalLayout, generalActionFunctions.undoShowAndPerformIncrementalLayout);
 
   // register SBGN actions
   ur.action("addStateAndInfo", SBGNActionFunctions.addStateAndInfo, SBGNActionFunctions.removeStateAndInfo);
diff --git a/sample-app/sampleapp-components/js/sample-app-cytoscape-sbgn.js b/sample-app/sampleapp-components/js/sample-app-cytoscape-sbgn.js
index 68624b2..cb40d7c 100644
--- a/sample-app/sampleapp-components/js/sample-app-cytoscape-sbgn.js
+++ b/sample-app/sampleapp-components/js/sample-app-cytoscape-sbgn.js
@@ -444,6 +444,26 @@ var SBGNContainer = Backbone.View.extend({
               cy.elements().unselect();
               cy.elements('[sbgnclass="' + sbgnclass + '"]').select();
             }
+          },
+          {
+            id: 'ctx-menu-show-hidden-neighbours', 
+            title: 'Show Hidden Neighbours', 
+            selector: 'node', 
+            onClickFunction: function (event) { 
+              // TODO move this content to another function (We should find a suitable code base for it) 
+              // and call that function here
+              var cyTarget = event.cyTarget;
+              var hiddenNeighbours = sbgnFiltering.getNeighboursOfGivenEles(cyTarget).filter(':hidden');
+              if(hiddenNeighbours.length === 0) {
+                return;
+              }
+              
+              var param = {
+                eles: hiddenNeighbours
+              };
+              
+              cy.undoRedo().do("showAndPerformIncrementalLayout", param);
+            }
           }
         ]);
 
diff --git a/sample-app/sampleapp-components/js/sample-app-menu-functions.js b/sample-app/sampleapp-components/js/sample-app-menu-functions.js
index 56c3743..9371faf 100644
--- a/sample-app/sampleapp-components/js/sample-app-menu-functions.js
+++ b/sample-app/sampleapp-components/js/sample-app-menu-functions.js
@@ -93,6 +93,7 @@ var beforePerformLayout = function(){
 
 //A function to trigger incremental layout. Its definition is inside document.ready()
 var triggerIncrementalLayout;
+var triggerIncrementalLayoutAfterExpandCollapse;
 
 var getExpandCollapseOptions = function() {
   return {
@@ -329,9 +330,6 @@ $(document).ready(function () {
     });
 
     triggerIncrementalLayout = function(){
-      if(!sbgnStyleRules['rearrange-after-expand-collapse']) {
-        return;
-      }
       beforePerformLayout();
 
       var preferences = {
@@ -347,8 +345,16 @@ $(document).ready(function () {
       sbgnLayoutProp.applyLayout(preferences, false); // layout must not be undoable
     };
 
+    triggerIncrementalLayoutAfterExpandCollapse = function(){
+      if(!sbgnStyleRules['rearrange-after-expand-collapse']) {
+        return;
+      }
+      
+      triggerIncrementalLayout();
+    };
+
     // set layoutBy option of expand collapse extension
-    cy.setExpandCollapseOption('layoutBy', triggerIncrementalLayout);
+    cy.setExpandCollapseOption('layoutBy', triggerIncrementalLayoutAfterExpandCollapse);
 
     $("body").on("change", "#file-input", function (e) {
       if ($("#file-input").val() == "") {
diff --git a/src/utilities/sbgn-filtering.js b/src/utilities/sbgn-filtering.js
index 4d86ad0..c34e97d 100644
--- a/src/utilities/sbgn-filtering.js
+++ b/src/utilities/sbgn-filtering.js
@@ -16,18 +16,28 @@ var sbgnFiltering = {
 
     getProcessesOfSelected: function(){
         var selectedEles = cy.elements(":selected");
-        selectedEles = this.expandNodes(selectedEles);
-        return selectedEles;
+        return this.getProcessesOfGivenEles(selectedEles);
     },
     
     getNeighboursOfSelected: function(){
         var selectedEles = cy.elements(":selected");
-        selectedEles = selectedEles.add(selectedEles.parents("node[sbgnclass='complex']"));
-        selectedEles = selectedEles.add(selectedEles.descendants());
-        var neighborhoodEles = selectedEles.neighborhood();
-        var elesToHighlight = selectedEles.add(neighborhoodEles);
-        elesToHighlight = elesToHighlight.add(elesToHighlight.descendants());
-        return elesToHighlight;
+        return this.getNeighboursOfGivenEles(selectedEles);
+    },
+    
+    getProcessesOfGivenEles: function(eles){
+        var processesOfGivenEles = eles;
+        processesOfGivenEles = this.expandNodes(processesOfGivenEles);
+        return processesOfGivenEles;
+    },
+    
+    getNeighboursOfGivenEles: function(eles){
+        var neighbourOfGivenEles = eles;
+        neighbourOfGivenEles = neighbourOfGivenEles.add(neighbourOfGivenEles.parents("node[sbgnclass='complex']"));
+        neighbourOfGivenEles = neighbourOfGivenEles.add(neighbourOfGivenEles.descendants());
+        var neighborhoodEles = neighbourOfGivenEles.neighborhood();
+        var result = neighbourOfGivenEles.add(neighborhoodEles);
+        result = result.add(result.descendants());
+        return result;
     },
 
     expandNodes: function(nodesToShow){