When you change groups, the previus group's weapons stay selected. really annoying

Hmm, that shouldn't be the case. It should actually show what weapons are selected for the new group. I'll see. May be a mac-specific bug.

Actually, I think it's a full-out bug but misreported...

What happens is that the primary group gets linked to fire control button 2, rather than 1. The secondary group gets linked to fire control button 1.

They're backwards, and this creates confusion.

Hahahaha, oh yeah.
+Shoot2 is primary and
+Shoot1 is secondary. that's funny. ;)

Changing that would break everyone's current key bindings, so that's why it was never switched.