Dang. That's a pretty B.A. feature, there. Crap like that ends up eating up too much time, for what it is, when we have to do that kind of stuff. It's so meticulous/painstaking/tedious.
That's awwwwwesome looking, if it's as easy/smooth as he makes it look in the yootoobz video. I wonder if Revit will have something similar? :/