Anybody here use wys? I can't figure out how to do a few things: I have a stage which I've assembled out of an extruded surface (trapezoid), and then there's a semi-oval on the edge. I can extrude my arc to the proper height, but, I cannot figure out how to fill in the center. How do I make a sloping floor to put seating on? How do I do a sloped ceiling? In general, I can't figure out how to elevate & pitch a surface.