Assign Task/Option/etc to Multiple Groups by Trigger Zone or Menu

[Exorcet]

Inspired somewhat by the discussion in this thread:

I think it would be nice to be able to assign waypoint options/actions/whatever to many units all at once. This could be done through trigger zones or maybe by multiselect on the unit list.

So for example if you have 20 groups of tanks and want them all set to hold fire, you could put a trigger zone around the tanks and set all groups (maybe separated by type, ie plane, helicopter, ground unit, ship, etc) and then use "assign all in zone hold fire".

Alternatively, if we had a menu like the unit list for group actions with multiselect, that would work as well.