Here I show how to trace a simple black and white image and reverse it in order to engrave a rubber stamp with a laser cutter/engraver.

Keyboard shortcuts used in this video:
End = send selected item to bottom of stack
Ctrl + z = undo (handiest shortcut ever)
Ctrl + d = duplicate, makes a copy of selected exactly in the same place
Ctrl +0 = outset
Ctrl + 9 = inset
I don’t think I used the shortcuts for break apart and union, I used the menu, but the shortcuts for those are
Ctrl + Shift + K = break apart
Ctrl + shift + ‘+/=’ = union