diff --git a/AlgebraicDataflowArchitectureModel/src/application/simulator/InputEventCellEditor.java b/AlgebraicDataflowArchitectureModel/src/application/simulator/InputEventCellEditor.java
index 46bc39a..476c942 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/simulator/InputEventCellEditor.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/simulator/InputEventCellEditor.java
@@ -75,6 +75,7 @@
 	protected int minimumWidth = DEFAULT_MIN_WIDTH;
 	protected int minimumHeight = DEFAULT_MIN_HEIGHT;
 
+	private SimulatorWindow window;
 	private Object editingCell;
 	private EventObject trigger;
 	private JComboBox<String> comboBox;
@@ -84,8 +85,8 @@
 	private Editor editor;
 	private boolean bReflectingArchitectureModel = false;
 	
-	public InputEventCellEditor(mxGraphComponent graphComponent, Simulator simulator, Editor editor) {
-		this.graphComponent = graphComponent;
+	public InputEventCellEditor(SimulatorWindow window, mxGraphComponent graphComponent, Simulator simulator, Editor editor) {		this.graphComponent = graphComponent;
+		this.window = window;
 		this.simulator = simulator;
 		this.editor = editor;
 	}
@@ -109,26 +110,8 @@
 			ArrayList<Expression> eventMessages = new ArrayList<>();//messageList
 			ResourcePath eventResPath = null;
 
-			for(Channel ch : simulator.getModel().getInputChannels()) {//all channel
-				if(((DataTransferChannel)ch).getInputResources().size()== 0) {//ioch Or normalch
-					for(ChannelMember out: ((DataTransferChannel)ch).getOutputChannelMembers()) {
-						ResourcePath resPath = out.getResource();
-						if(resId.isInstanceOf(resPath)) {//account.uid == acounts.123
-							eventResPath = resPath;
-							eventChs.add(((DataTransferChannel)ch));
-							String message = null;
-							Expression mesExp = out.getStateTransition().getMessageExpression();//sync(a,b)
-							eventMessages.add(mesExp);
-							if(mesExp instanceof Term) {
-								message = ((Term) mesExp).getSymbol().toString();//sync
-							}else if(mesExp instanceof Variable) {
-								message = ((Variable) mesExp).getName();//x,y,z..
-							}
-							messages.add(message);//pulldown 
-							
-						}
-					}
-				}
+			for (Channel ch: simulator.getModel().getInputChannels()) {//all channel
+				eventResPath = getSelectableMessages(ch, resId, eventChs, messages, eventMessages, eventResPath);
 			}
 			    
 			if(messages.isEmpty()) {
@@ -140,7 +123,7 @@
 			JPanel eventChoice = new JPanel();
 			eventChoice.add(event);//FirstEventChoice
 			
-			int ret = JOptionPane.showConfirmDialog(null, eventChoice, "Event Choice", JOptionPane.OK_CANCEL_OPTION);
+			int ret = JOptionPane.showConfirmDialog(window, eventChoice, "Event Choice", JOptionPane.OK_CANCEL_OPTION);
 			if (ret == JOptionPane.OK_OPTION) {
 				
 				JPanel inputEvent = new JPanel();
@@ -157,22 +140,22 @@
 				JTextArea textArea = new JTextArea(eventMessages.get(eventNum).toString(), 10, 30);//EventInput
 				inputEvent.add(textArea);
 			
-				int approve = JOptionPane.showConfirmDialog(null, inputEvent, "Event Code", JOptionPane.OK_CANCEL_OPTION);
+				int approve = JOptionPane.showConfirmDialog(window, inputEvent, "Event Code", JOptionPane.OK_CANCEL_OPTION);
 				if (approve == JOptionPane.OK_OPTION) {
 					try {
 					
-					TokenStream stream = new Parser.TokenStream();
-					Parser parser = new Parser(stream);
-					stream.addLine(textArea.getText());
-					Expression eventMessage = parser.parseTerm(stream,simulator.getModel());
-					
-					Event newEvent = new Event(eventChs.get(eventNum), eventMessage, eventResPath, simulator.getCurState().getResource(resId)); 
-					simulator.transition(newEvent);
-
-//					SimulationLayout layout =  new SimulationLayout(simulator.getCurState());
-//					layout.constructSimulateGraph(graph, simulator);
-
-					graphComponent.setCellEditor(new InputEventCellEditor(graphComponent, simulator, this.editor));
+						TokenStream stream = new Parser.TokenStream();
+						Parser parser = new Parser(stream);
+						stream.addLine(textArea.getText());
+						Expression eventMessage = parser.parseTerm(stream,simulator.getModel());
+						
+						Event newEvent = new Event(eventChs.get(eventNum), eventMessage, eventResPath, simulator.getCurState().getResource(resId)); 
+						simulator.transition(newEvent);
+	
+//						SimulationLayout layout =  new SimulationLayout(simulator.getCurState());
+//						layout.constructSimulateGraph(graph, simulator);
+	
+						graphComponent.setCellEditor(new InputEventCellEditor(window, graphComponent, simulator, this.editor));
 					
 					} catch (ParameterizedIdentifierIsFutureWork | ResolvingMultipleDefinitionIsFutureWork
 							| InvalidMessage | UnificationFailed | ValueUndefined | ExpectedRightBracket | WrongJsonExpression | ExpectedColon | ExpectedDoubleQuotation e) {
@@ -180,8 +163,6 @@
 					}
 				}
 			}
-			//resource
-		return;
 		}
 
 		mxCellState state = graphComponent.getGraph().getView().getState(cell);
@@ -203,7 +184,34 @@
 			}
 		}
 	}
-
+	
+	private ResourcePath getSelectableMessages(Channel ch, ResourceIdentifier resId,
+			ArrayList<DataTransferChannel> eventChs, ArrayList<String> messages, ArrayList<Expression> eventMessages,
+			ResourcePath eventResPath) {
+		if (((DataTransferChannel)ch).getInputResources().size() == 0) {//ioch Or normalch
+			for (ChannelMember out: ((DataTransferChannel)ch).getOutputChannelMembers()) {
+				ResourcePath resPath = out.getResource();
+				if (!out.isOutside() && resId.isInstanceOf(resPath)) {//account.uid == acounts.123
+					eventResPath = resPath;
+					eventChs.add(((DataTransferChannel)ch));
+					String message = null;
+					Expression mesExp = out.getStateTransition().getMessageExpression();//sync(a,b)
+					eventMessages.add(mesExp);
+					if (mesExp instanceof Term) {
+						message = ((Term) mesExp).getSymbol().toString();//sync
+					} else if(mesExp instanceof Variable) {
+						message = ((Variable) mesExp).getName();//x,y,z..
+					}
+					messages.add(message);//pulldown 
+				}
+			}
+			for (Channel childCh: ch.getChildren()) {
+				eventResPath = getSelectableMessages(childCh, resId, eventChs, messages, eventMessages, eventResPath);
+			}
+		}
+		return eventResPath;
+	}
+	
 //	private mxGraph constructNextSimulateGraph(Set<Resource> simulateRes, DataTransferModel model,DataFlowGraph dataFlowGraph, mxGraph nextGraph) {
 //		bReflectingArchitectureModel = true;
 //		((mxGraphModel) nextGraph.getModel()).clear();