currently when you select a model surface in the Geometry tab of a tool path and hit "Ctrl+z" you get booted out of the tool path. it would be great if instead it just deleted the last selected surface. There has been many of times I've selected multiple faces and then select one i didn't want and out of habit hit "Ctrl+z" to undo it and be stuck having to go back into the tool path and re-select all the surfaces again. i know you can just click the surface and it'll undo but the "Ctrl+z" would be handy.
