so when you group them and they are swichted to ground fire, what if some interceptors come? they won't shoot back, right? at least as long as you toggle the switch.
would it be better to change their attack priorities? i think if you want to attack ground targets you do it manually anyway and when some air fight is going to happen, well the priority of attacking air first would do the job too.
i think there is no need for the switch but for changing the attack priorities. i dont want to lose my bombers because i have forgotten to toggle the damed switch!