The external dwell jitter margin settings

If you want to use dwell outside of Mind Express, then you can specify the area within which to dwell.
  1. Choose Tools > Mouse selection....
  2. Select the Dwell selection option.
  3. In the External dwelling jitter margin: field, enter the size (in pixels) of the dwell area. If the mouse pointer leaves this area, a new dwelling starts.
  4. Click OK.