diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
index a2a7d64..bf219f6 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
@@ -11,6 +11,7 @@
 import com.mxgraph.model.mxCell;
 import com.mxgraph.swing.mxGraphComponent;
 import com.mxgraph.swing.mxGraphComponent.mxGraphControl;
+import com.mxgraph.view.mxCellState;
 
 import application.editor.FlowCellEditor;
 import models.controlFlowModel.CallEdgeAttribute;
@@ -54,19 +55,46 @@
 				
 		switch(curState) {
 			case SELECTING_AN_EDGE:
-				
-				if( graphComponent.getGraph().getModel().isEdge(cellObj) ) {
-					System.out.println("Selecting");
+				// Branching based on the edge click event.
+				// | double clicked > Showing delegatable nodes.
+				// | right    clicked > Inserting a stateless node. 
+				//								(added listener -> InsertObjectNodeAction)
+				if( graphComponent.getGraph().getModel().isEdge(cellObj)) {
+					showDelegatableNodesBySelectedEdge(cellObj);
+					curState = ControlFlowDelegationStageStatus.SHOWING_DELEGATABLE_NODES;
+					
+					mxCellState state = graphComponent.getGraph().getView().getState(cellObj);
+
+					// If the label of the edge is clicked,
+					// then inputing a call order you want.
+					if(state == null || state.getLabel() == null) return;
+					if(state.getLabel().equals("")) return;
+
+					String input = "";
+					int inputOrder = 0;
 
 					CallEdgeAttribute callEdgeAttr = (CallEdgeAttribute)graphComponent.getGraph().getModel().getValue(cellObj);	
 					if(callEdgeAttr == null) return;
 					
-					System.out.println("Edge: " + callEdgeAttr.getSelectedOption().name());		
+					input = JOptionPane.showInputDialog("Call order");
+					if( input == null) return;
+					if( !isNumeric(input) ) {
+						JOptionPane.showMessageDialog(graphComponent, "Input value must type of number.");
+						return;
+					}
 					
-					((ControlFlowDelegationStage)stage).showDelegatableNodes(callEdgeAttr);			
+					inputOrder = Integer.parseInt(input);
 					
-					// Advance to the next stage;
-					curState = ControlFlowDelegationStageStatus.SHOWING_DELEGATABLE_NODES;
+					final int endOfOrderOfSrc = callEdgeAttr.getSourceObjectNode().getOutdegree();
+	
+					if(inputOrder <= 0	|| endOfOrderOfSrc < inputOrder) {
+						JOptionPane.showMessageDialog(graphComponent, "Input order must be between 0 and " + endOfOrderOfSrc + ".");
+						return;
+					}
+					
+					int curOrder = callEdgeAttr.getSourceObjectNode().getOutEdgeCallOrder(callEdgeAttr.getCallEdge());
+					callEdgeAttr.getSourceObjectNode().sortOutEdgesByCallOrder(curOrder,  inputOrder);					
+					graphComponent.refresh();
 				}
 				break;
 
@@ -91,7 +119,29 @@
 	public void stopEditing(boolean cancel) {
 
 	}
-		
+
+	
+	/*************************************************************
+	 * [ *private ]
+	/*************************************************************
+	 * 
+	 */
+	private void showDelegatableNodesBySelectedEdge(Object cellObj) {
+			CallEdgeAttribute callEdgeAttr = (CallEdgeAttribute)graphComponent.getGraph().getModel().getValue(cellObj);	
+			if(callEdgeAttr == null) return;
+			
+			((ControlFlowDelegationStage)stage)
+				.showDelegatableNodes(graphComponent.getGraph(), callEdgeAttr);
+	}
+
+	/*************************************************************
+	 * 
+	 */
+	private boolean isNumeric(final String str) {
+		if(str == null) return false;
+		return str.matches("[0-9.]+");
+	}
+	
 	/*************************************************************
 	 * Inserting an intermediation object type of <Object-Node>.
 	 */
diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationStage.java b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationStage.java
index d0607e7..6171996 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationStage.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationStage.java
@@ -86,7 +86,7 @@
 	 * 
 	 * Todo: PUSH/PULLレイヤーへの対応
 	 */
-	public void  showDelegatableNodes(final CallEdgeAttribute callEdgeAttribute){
+	public void  showDelegatableNodes(mxGraph graph, final CallEdgeAttribute callEdgeAttribute){
 		mxCell root = (mxCell)graph.getDefaultParent();
 		mxCell controlGraphLayer = (mxCell)root.getChildAt(CONTROL_FLOW_LAYER);
 
@@ -167,7 +167,7 @@
 			ObjectNode insertObjNode = new ObjectNode(insertObjName);
 			ObjectNodeAttribute objNodeAttr = new ObjectNodeAttribute(insertObjNode);
 			mxCell insertObjNodeCell = (mxCell)graph.insertVertex(contorlLayerCell, null, objNodeAttr, 20, 20, 40, 40, objNodeAttr.getDefaultStyle());
-
+			
 			insertObjNodeCell.setValue(objNodeAttr);
 			
 			addObjectNodeToCallGraphl(insertObjNode, callEdgeAttr.getSelectedOption());
diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/PushPullSelectionCellEditor.java b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/PushPullSelectionCellEditor.java
index f4f27da..49325a3 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/PushPullSelectionCellEditor.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/PushPullSelectionCellEditor.java
@@ -119,7 +119,6 @@
 		}
 	}
 
-
 	public String getCurrentValue() {
 		return (String) comboBox.getSelectedItem();
 	}
diff --git a/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/CallEdgeAttribute.java b/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/CallEdgeAttribute.java
index 450f732..66a8807 100644
--- a/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/CallEdgeAttribute.java
+++ b/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/CallEdgeAttribute.java
@@ -29,7 +29,7 @@
 	/*************************************************************
 	 *  [ *public ]
 	/*************************************************************
-	 * [ getter ]
+	 *  [ getter ]
 	/*************************************************************/
 	public CallEdge getCallEdge() {
 		return callEdge;
diff --git a/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/ObjectNode.java b/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/ObjectNode.java
index 8bbcc31..53d7459 100644
--- a/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/ObjectNode.java
+++ b/AlgebraicDataflowArchitectureModel/src/models/controlFlowModel/ObjectNode.java
@@ -6,9 +6,16 @@
 import models.Edge;
 import models.Node;
 
+/*************************************************************
+*
+*/
 public class ObjectNode extends Node{
 	protected String name = "";
 	
+	/*************************************************************
+	 * [ *constructor]
+	/*************************************************************
+	 */
 	public ObjectNode(String name) {
 		inEdges = new ArrayList<>();
 		outEdges = new ArrayList<>();		
@@ -16,6 +23,11 @@
 		this.name = name;
 	}
 
+	/*************************************************************
+	 * [ *public ]
+	/*************************************************************
+	 * 
+	 */	
 	public String getName() {
 		return name;
 	}
@@ -24,20 +36,6 @@
 		this.name = name;
 	}
 	
-	public CallEdge findEdgeInOutEdges(final CallEdge edge) {
-			for(Edge e : outEdges) {
-				if( e instanceof CallEdge) return (CallEdge)e;
-			}
-			return null;
-	}
-
-	public CallEdge findEdgeInInEdges(final CallEdge edge) {
-		for(Edge e : inEdges) {
-			if( e instanceof CallEdge) return (CallEdge)e;
-		}
-		return null;
-}
-	
 	public CallEdge getInEdge(int i) {
 		return (CallEdge) ((List<Edge>) inEdges).get(i);
 	}
@@ -45,11 +43,25 @@
 	public CallEdge getOutEdge(int i) {
 		return (CallEdge) ((List<Edge>) outEdges).get(i);
 	}
+
+	public CallEdge findEdgeInInEdges(final CallEdge edge) {
+		for(Edge e : inEdges) {
+			if( e instanceof CallEdge) return (CallEdge)e;
+		}
+		return null;
+	}
 	
 	public void insertOutEdge(CallEdge edge, int n) {
 		((List<Edge>) outEdges).add(n, edge);
 	}
 	
+	public CallEdge findEdgeInOutEdges(final CallEdge edge) {
+		for(Edge e : outEdges) {
+			if( e instanceof CallEdge) return (CallEdge)e;
+		}
+		return null;
+	}
+	
 	public int getChildrenNum() {
 		return outEdges.size();
 	}
@@ -64,4 +76,15 @@
 	public ObjectNode getChildren(int i) {
 		return (ObjectNode) ((List<Edge>) outEdges).get(i).getDestination();
 	}
+	
+	/*************************************************************
+	 * 
+	 */
+	public void sortOutEdgesByCallOrder(final int curOrder, final int callOrder) {
+		ArrayList<Edge> edges = ((ArrayList<Edge>)outEdges);
+		Edge edge = ((List<Edge>)outEdges).get(curOrder);
+
+		edges.remove(curOrder);
+		edges.add(callOrder-1, edge);
+	}
 }