Quote Originally Posted by L.C.Cinna
you can group your units...select them and then press ctrl G to form a numbered group.

Correct. Or you can just select ctrl-1, ctrl-2 etc to define what number you want to assign them, as well as to add previously ungrouped units onto currently existing groups.

And horst, the response implied it was a stupid question not because it was stupid (perfectly legit question), but I thought anyone who'd played RTW long enough to end up playing EB would have known that before he ended his first campaign... it's a pretty standard RTS command. o.O