diff --git a/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.lua b/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.lua
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+++ b/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.lua
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+---
+-- Author: FlightControl
+-- Created: 20.10.2018
+-- Contributors: kaltokri
+-- Modified: 18.03.2024
+--
+-- # Documentation:
+-- https://flightcontrol-master.github.io/MOOSE_DOCS_DEVELOP/Documentation/Core.Menu.html
+-- https://flightcontrol-master.github.io/MOOSE_DOCS_DEVELOP/Documentation/Core.Scheduler.html
+--
+-- # Description:
+--
+-- This demo creates a menu structure for the two groups of planes.
+-- Each group will receive a different menu structure.
+--
+-- # Guide:
+--
+-- To test this mission join the planes, look at the radio menus (option F10).
+-- Then switch planes and check if the menu is still there.
+-- And play with the Add and Remove menu options.
+-- NOTE: That will only work on multiplayer after the DCS groups bug is solved.
+
+
+-- We define the variable here, so we can use it in the functions, but the status is saved on mission script level.
+local MenuStatus = {}
+
+-- A simple function to show a status text.
+local function ShowStatus( PlaneGroup, StatusText, TextToCoalition )
+  MESSAGE:New( TextToCoalition, 15 ):ToRed()
+  PlaneGroup:Message( StatusText, 15 )
+end
+
+--- This function creates a menu entry for the red coalition to show a status message.
+-- @param Wrapper.Group#GROUP MenuGroup
+local function AddStatusMenu( MenuGroup )
+  local MenuGroupName = MenuGroup:GetName()
+  -- This would create a menu for the red coalition under the MenuCoalitionRed menu object.
+  MenuStatus[MenuGroupName] = MENU_GROUP:New( MenuGroup, "Status for Planes" )
+  MENU_GROUP_COMMAND:New( MenuGroup, "Show Status", MenuStatus[MenuGroupName], ShowStatus, MenuGroup, "Status of planes is ok!", "Message to Red Coalition" )
+end
+
+-- This function removes the menu entry for the red coalition to show a status message.
+local function RemoveStatusMenu( MenuGroup )
+  local MenuGroupName = MenuGroup:GetName()
+  MenuStatus[MenuGroupName]:Remove()
+end
+
+-- Start a scheduler after a delay of 5 seconds and repeat it's execution very 5 seconds
+SCHEDULER:New( nil,
+  function()
+    -- Find both groups and save them in an object.
+    local PlaneGroup1 = GROUP:FindByName( "Plane 1" )
+    local PlaneGroup2 = GROUP:FindByName( "Plane 2" )
+
+    -- Add menu for the first group
+    if PlaneGroup1 and PlaneGroup1:IsAlive() then
+      local MenuGroup1 = MENU_GROUP:New( PlaneGroup1, "Manage Menus" )
+      MENU_GROUP_COMMAND:New( PlaneGroup1, "Add Status Menu Plane 1", MenuGroup1, AddStatusMenu, PlaneGroup1 )
+      MENU_GROUP_COMMAND:New( PlaneGroup1, "Remove Status Menu Plane 1", MenuGroup1, RemoveStatusMenu, PlaneGroup1 )
+    end
+
+    -- Add menu for the second group
+    if PlaneGroup2 and PlaneGroup2:IsAlive() then
+      local MenuGroup2 = MENU_GROUP:New( PlaneGroup2, "Manage Menus" )
+      MENU_GROUP_COMMAND:New( PlaneGroup2, "Add Status Menu Plane 2", MenuGroup2, AddStatusMenu, PlaneGroup2 )
+      MENU_GROUP_COMMAND:New( PlaneGroup2, "Remove Status Menu Plane 2", MenuGroup2, RemoveStatusMenu, PlaneGroup2 )
+    end
+  end, {}, 5, 5 )
+
+MESSAGE:New( "Mission script loaded successfully", 25, "INFO" ):ToAll():ToLog()
+MESSAGE:New( "The script will check every 5 seconds if group is available and add the menu.", 25, "INFO" ):ToAll():ToLog()
diff --git a/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.miz b/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.miz
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Binary files /dev/null and b/Core/Menu/013-Menu-Group-add-and-remove/MEN-013-Menu-Group-add-and-remove.miz differ