Im not sure about this but i come very often now about this situation.
I got rushed and need to secure not military workers (women, traders, so on) in one direction away from the away enemy and military units into the direction of the enemy. sometimes the bell doenst work for women or they all go to one house where they not fit all in. so i need to select only not military workers to bring them to a save place and therefore having a selection hotkey would be wise.
so i added this diff.
please discuss