As you said, that's kinda strange that they don't give you a better way to group targets. It sounds like you need to be in belligerent mode when involved in all out combat - you wouldn't have time to individually specify each target, right?
I find your point about the keyboard to be a serious drag. I've pretty much mastered the camera with the mouse. With the keyboard, man, it's like the view thru the ****pit of a plane with its wings ripped off - totally out of control. But I'm sure you're right - I can't be dinking with the "mouse camera" when I need to be doing other things.
I keep playing this game and liking it more and more. The most intelligent-sounding review I've found on FC is at
http://www.strategy-gaming.com/reviews/force_commander/index.shtml).
But they consider the 3D aspect of FC to be a big weakness. Heck, if FC was just another 3/4 top-down view, 2D graphics, RTS game I never would have bought it!
I am digging this game!