I always select building, hit tab (selects the unit), right-click where he should get out. There are ofc other ways to do it.
It's a decent method but it also sometimes bugs out. I've noticed that if one of the men in the squad dies in between me hitting tab and clicking where to get out, it will often un-select the squad, which is also annoying, because I can't get em out if it keeps unselecting them
