Moving laser with numeric keypad erraticly works,How to solve it?

Note - Numlock must be enabled in Windows and Linux to use Keypad jogging
Jog moves the laser in the jog increments set in the Move tab.
To activate keypad jog you must first click in the workspace area and not have the text tool active.
FWIW, the most common thing I get wrong is having the cursor in a numeric field, rather than the workspace.