It is, in fact, described in the trick called The Moving Pencil. Page 158.If you don't need something that works 100% of the time, the step and spread force works on layman probably 8/10 times if done with enough indifference. The other 2 times you have a key card control.
The force DominusDolorum is referencing is called The Moving Pencil, or is at least described in a trick by that name. If memory serves.