In the video shown above, the Browser button is used to select only the projection of the parts onto the X-Y plane. When I try that with MoI, I don't have the same options shown. For example, my "Curves" and "Surfaces" are grayed out. I can't seem to get just the 2D view of the parts. I'd like to do this because I have some edges with a fillet that I'd like to remove or undo.

Can you explain how this was done?