CurveOnSurface (Close=Yes) command displays prompts, but it does not make any curves.
When I use the UntrimHoles (All = Yes) command, I have to select the surface either by crossing (rectangle), or by clicking edge of any hole, or by clicking a spot between the holes. If I click edge of the surface, nothing happens. When I move the same surface (with Move command) I can select it by clicking its edge.