Well, for instance at 7:48 the door is still a plane, but magically at 8:20 it has depth and beveling, with no video. At 17:58 he uses the “B” shortcut to “deselect” vertices, but mine only selects. I can’t find a way to “deselect” the vertices on the sliding mechanism to (like he says) “make it narrower.” So, for the umpteenth time, I’m stuck. This guy is NOT a teacher and has no business trying to be one. Please help. Thanks