Honestly, you don't have to do anything extra unless you were having issues keeping the specs at the right levels before the eggs were laid. If the enclosure is at an ideal temperature and humidity level for the ball (temp on warm side in the upper 80s and humidity no less than 70%), she can take it from there. If you try to go out of your way to change things and make the enclosure into an incubator, itself, you'll set yourself up for disaster.