Reasoning:
Group eventhandlers dont fire when the player order 'combat' 'safe' 'stealth' etc:
https://community.bistudio.com/wiki/Arma_3:_Event_Handlers#CombatModeChanged
only seems to trigger from auto combat and waypoints I believe, but command menu doesnt
The most benefit would be to became aware of commands.
Next would be the ability to stop a command (and replace with something scripted).
Suggested command:
_group addEventhandler ["command",{}];
_this containing _issuer [objNull], _commandType [int/string], _selectedUnits [array], _type (of command menu - simple/complex) [int/string]
Return:
_blockCommand [bool] (default: false)