diff --git a/01_Code/physical_computing_interface/dnn/graph.js b/01_Code/physical_computing_interface/dnn/graph.js
index e9fcace18b4b0cd9c4748cb2a6c834b73e2efc4e..76fc9810034c36e187f0a44c5c7514705074f0ce 100644
--- a/01_Code/physical_computing_interface/dnn/graph.js
+++ b/01_Code/physical_computing_interface/dnn/graph.js
@@ -454,7 +454,7 @@ document.addEventListener('addNode', function (e) {
   // tgt.move({parent: ''+neighborhood});
   // tgt._private.data.data.parent= neighborhood;
 
-  // api.expandAll();
+  api.expandAll();
   
 }, false);
 
@@ -559,6 +559,7 @@ document.addEventListener('updateNode', function (e) {
 }, false);
 
 document.addEventListener('removeNode', function (e) { 
+  
   var tgt=cyy.$id(e.detail.id);
   tgt.remove();
 
diff --git a/01_Code/physical_computing_interface/index.html b/01_Code/physical_computing_interface/index.html
index 4f763d7db7f11a4e0b0d95bf7b8d84f690a02586..429e845da149c5a2f8d5fb119886132c90818377 100644
--- a/01_Code/physical_computing_interface/index.html
+++ b/01_Code/physical_computing_interface/index.html
@@ -32,7 +32,7 @@
             
     </div>
 
-    <div id="simulation">
+    <div id="simulation" style="overflow: scroll;">
         <div id="threejs1">
             <div class="header1">
                     <i> Assembler Control</i>