Flat Buildings Feature

Hello, I think it would usefull an option to temporary flat all buildings like in Strongold franchise when you press the spacebar. Sometimes you want to snipe another building behind a Castle for example, but can’t even see it.
I know the Alt key feature, but it only works with vils.
I don’t want the fancy animation of Stronghold, just switch between normal building sprite and a kind of flat foundation sprite.

Have a nice day!

A feature like that would just kill the realism of AoE II.