diff --git a/AIParkingApplication/AIParkingApplicationForm.cs b/AIParkingApplication/AIParkingApplicationForm.cs
index 1fe9d65..2889cd1 100644
--- a/AIParkingApplication/AIParkingApplicationForm.cs
+++ b/AIParkingApplication/AIParkingApplicationForm.cs
@@ -8,6 +8,8 @@ namespace AIParkingApplication
 {
     public partial class AIParkingApplicationForm : Form
     {
+        private const string CURRENT_LANE_SETTING_KEY = "CURRENT_LANE_SETTING";
+
         private ApiController apiController;
         private IDoorControlAccess c3Device;
         private LaneIn laneIn12;
@@ -92,6 +94,8 @@ namespace AIParkingApplication
             laneOut34.Location = new Point(laneIn12.Location.X + laneIn12.Width + 20, menuStrip.Height);
             laneOut34.Show();
             laneOut34.Start();
+
+            toolStripMenuItemSwitchLaneInOut.DisableSelected();
         }
 
         private void UpdateLaneInIn()
@@ -105,6 +109,8 @@ namespace AIParkingApplication
             laneIn56.Location = new Point(laneIn12.Location.X + laneIn12.Width + 20, menuStrip.Height);
             laneIn56.Show();
             laneIn56.Start();
+
+            toolStripMenuItemSwitchLaneInIn.DisableSelected();
         }
 
         private void UpdateLaneOutIn()
@@ -118,6 +124,8 @@ namespace AIParkingApplication
             laneIn56.Location = new Point(laneOut78.Location.X + laneOut78.Width + 20, menuStrip.Height);
             laneIn56.Show();
             laneIn56.Start();
+
+            toolStripMenuItemSwitchLaneOutIn.DisableSelected();
         }
 
         private void UpdateLaneOutOut()
@@ -131,11 +139,13 @@ namespace AIParkingApplication
             laneOut34.Location = new Point(laneOut78.Location.X + laneOut78.Width + 20, menuStrip.Height);
             laneOut34.Show();
             laneOut34.Start();
+
+            toolStripMenuItemSwitchLaneOutOut.DisableSelected();
         }
 
         private void toolStripMenuItemSwitchLaneInIn_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "IN-IN");
+            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-IN");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInIn();
@@ -143,7 +153,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneInOut_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "IN-OUT");
+            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInOut();
@@ -151,7 +161,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneOutIn_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "OUT-IN");
+            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-IN");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutIn();
@@ -159,7 +169,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneOutOut_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "OUT-OUT");
+            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-OUT");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutOut();
@@ -204,7 +214,7 @@ namespace AIParkingApplication
         {
             try
             {
-                string lanesConfig = ConfigurationManager.AppSettings["CURRENT_LANE_SETTING"];
+                string lanesConfig = ConfigurationManager.AppSettings[CURRENT_LANE_SETTING_KEY];
                 if (!string.IsNullOrEmpty(lanesConfig))
                 {
                     string[] lanes = lanesConfig.Split('-');
@@ -215,14 +225,17 @@ namespace AIParkingApplication
                         if (lane0 == "in" && lane1 == "in")
                         {
                             UpdateLaneInIn();
+
                         }
                         if (lane0 == "in" && lane1 == "out")
                         {
                             UpdateLaneInOut();
+
                         }
                         if (lane0 == "out" && lane1 == "in")
                         {
                             UpdateLaneOutIn();
+
                         }
                         if (lane0 == "out" && lane1 == "out")
                         {
@@ -231,14 +244,14 @@ namespace AIParkingApplication
                     }
                     else
                     {
-                        Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "IN-OUT");
+                        Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                         UpdateLaneInOut();
                     }
                 }
             }
             catch (Exception ex)
             {
-                Util.AddOrUpdateAppSettings("CURRENT_LANE_SETTING", "IN-OUT");
+                Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                 UpdateLaneInOut();
                 Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadLaneSettingFromConfigurationFile\t{ex.Message}");
             }
diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index e6ecc7d..8cd808a 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -198,6 +198,12 @@ namespace AIParkingApplication
                 Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tAddOrUpdateAppSettings\t{ex.Message}");
             }
         }
+
+        public static void DisableSelected(this ToolStripMenuItem toolStripMenuItem)
+        {
+            toolStripMenuItem.Checked = true;
+            toolStripMenuItem.Enabled = false;
+        }
     }
 
     public class PlateRequestEngineModel