diff --git a/Assets/Model/Prefab/Container.prefab b/Assets/Model/Prefab/Container.prefab
index 08579aa5..be07daac 100644
--- a/Assets/Model/Prefab/Container.prefab
+++ b/Assets/Model/Prefab/Container.prefab
@@ -49,6 +49,9 @@ MonoBehaviour:
   modelType: Sink
   modelID: 
   nodeID: 
+  eventShipItem: items_shipped_successfully
+  eventRemoveItem: item_removed_from_queue
+  totalShipped: 0
 --- !u!1001 &7399670728975469901
 PrefabInstance:
   m_ObjectHideFlags: 0
diff --git a/Assets/Scenes/Simulation_0.0.1.unity b/Assets/Scenes/Simulation_0.0.1.unity
index 28f6cb43..44161767 100644
--- a/Assets/Scenes/Simulation_0.0.1.unity
+++ b/Assets/Scenes/Simulation_0.0.1.unity
@@ -6874,6 +6874,30 @@ PrefabInstance:
       propertyPath: m_AnchorMax.y
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 2307873482672832875, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_AnchorMax.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 2307873482672832875, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_SizeDelta.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 3164975517789104253, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_AnchorMax.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 3164975517789104253, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_AnchorMax.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 3164975517789104253, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_SizeDelta.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 3164975517789104253, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_SizeDelta.y
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 3512657831314021627, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
       propertyPath: m_SizeDelta.x
       value: 0
@@ -6894,6 +6918,14 @@ PrefabInstance:
       propertyPath: m_AnchoredPosition.y
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 7770922069808366893, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_AnchorMax.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 7770922069808366893, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
+      propertyPath: m_SizeDelta.x
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 7884294797245305317, guid: bc16ce627450b4a46a0bfdbe5fd69f94, type: 3}
       propertyPath: m_Name
       value: ObjectLibrary
diff --git a/Assets/Scripts/ClickHandler.cs b/Assets/Scripts/ClickHandler.cs
index 2fad4b03..2e91d83e 100644
--- a/Assets/Scripts/ClickHandler.cs
+++ b/Assets/Scripts/ClickHandler.cs
@@ -7,6 +7,8 @@ public class ClickHandler : MonoBehaviour
     public ModelObjectStatus objStatus;
     public float clickDurationThreshold = 0.2f;
     public float clickDistanceThreshold = 0.5f;
+    public float doubleClickThreshold = 0.2f;
+
     float clickStart = 0;
     Vector3 clickStartPos;
     public enum InputState
@@ -26,6 +28,10 @@ public class ClickHandler : MonoBehaviour
         {
             clickStart = Time.time;
             clickStartPos = Input.mousePosition;
+        }
+        else if (Input.GetMouseButtonDown(1))
+        {
+
         }
         else if (Input.GetMouseButtonUp(0))
         {
diff --git a/Assets/Scripts/Manager/PathManager.cs b/Assets/Scripts/Manager/PathManager.cs
index 6324900c..3e1fc71c 100644
--- a/Assets/Scripts/Manager/PathManager.cs
+++ b/Assets/Scripts/Manager/PathManager.cs
@@ -1,7 +1,8 @@
 using UnityEngine;
-
+using System.Collections.Generic;
 public class PathManager : UnitySingleton<PathManager>
 {
+    List<SimulationPathNode> nodes = new List<SimulationPathNode>();
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
     {
@@ -13,10 +14,5 @@ public class PathManager : UnitySingleton<PathManager>
     {
         
     }
-}
-public class SimulationPath
-{
-    public SimulationPath prev;
-    public SimulationPath next;
 
-}
\ No newline at end of file
+} 
\ No newline at end of file
diff --git a/Assets/Scripts/SimulationModels/SimulationModelSink.cs b/Assets/Scripts/SimulationModels/SimulationModelSink.cs
index 47842db5..850402e1 100644
--- a/Assets/Scripts/SimulationModels/SimulationModelSink.cs
+++ b/Assets/Scripts/SimulationModels/SimulationModelSink.cs
@@ -6,7 +6,7 @@ using System.Collections;
 public class SimulationModelSink : SimulationModel
 {
     public string eventShipItem = "items_shipped_successfully";
-    public string eventRemoveItem = "product_defective"; 
+    public string eventRemoveItem = "item_removed_from_queue"; 
     public int totalShipped = 0;
     ConcurrentQueue<JObject> dataQueue;
     // Start is called once before the first execution of Update after the MonoBehaviour is created
diff --git a/Assets/Scripts/SimulationPathNode.cs b/Assets/Scripts/SimulationPathNode.cs
new file mode 100644
index 00000000..422e472c
--- /dev/null
+++ b/Assets/Scripts/SimulationPathNode.cs
@@ -0,0 +1,18 @@
+using UnityEngine;
+
+public class SimulationPathNode : MonoBehaviour
+{
+    public SimulationPathNode prevNode;
+    public SimulationPathNode nextNode;
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+}
diff --git a/Assets/Scripts/SimulationPathNode.cs.meta b/Assets/Scripts/SimulationPathNode.cs.meta
new file mode 100644
index 00000000..f99b2586
--- /dev/null
+++ b/Assets/Scripts/SimulationPathNode.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 057aed38343026f42baf4fb2b77a7597
\ No newline at end of file