I agree, it's a pain having to tab through all of your currently selected units when you have a good mix of forces. I also agree I have never felt the need to select all units on the map of a type while the ability to select all of that type on screen would be greatly appreciated. I don't know how hard that would be to code though and it's not the highest priority IMO. Maybe if it's easy to code I would love to see it soon.
