I'd recommend having a box containing the unit's portrait and a number count of how many is in the selection near it at the bottom.
I actually support this idea. You can easily toggle unit type and effectively use the skills of the squad.
Yeah, that does make some sense. The interface has room for 15 units, so even if you use all 13 units in a group, you can probably find room. It makes sense for a game with as many masses of units as this one.
The downside to that is that you won't be able to see which units are losing health and micro those. Perhaps a button to toggle between numbers and all units modes?
I'm not completely sure about this, but perhaps you shouldn't be able to select buildings and units at the same time. It's really easy to accidentally click to send units somewhere you meant to place a building rally point or vice versa.
