Clipping Plane with Cap


I’m wondering if there’s a way to make a clipping plane over a geometry while creating a Cap for the parts that are cutted. Don’t know with I make myself clear…
I’m trying to make a cut on my building, so any other options that you might think of are all very welcome!

That’s what I want to do: V-Ray for 3ds Max – Quick Tutorial: Clipper - YouTube


Thank you! For the first video, Ive tried to reproduce but with no results.. I couldnt actually get the caps working well!
I`ll try this plannar dissolve effect, it seems to work for me!