Newbie- How to move a hole in TurboCAD Mac Pro?

[cauhape]

I've been in software for a couple of decades, but I'm new to
CAD/CAM. I'm teaching myself TurboCAD on the Mac, and
generally it's going pretty well.

However, I've run into an odd problem, and am hoping someone
can point out where I'm having the brain fart.

I'm trying to move a simple hole in a block. I can select the surface
of the hole, but am not able to move it. Changing the X,Y,Z values
doesn't do anything. If select the vertex of the hole, I end up moving
the point, but not the hole under it.

Anybody got a clue you can spare?

Jeff