i never planned on a switch for the fields. out side of the field would be whatever the gravity is for moon/planet your on inside the bubble would be same gravity as overworldOne major problem however with your suggestion may be that making it produce a 'field' inside which gravity is manipulated via a control GUI would mean you would have to manually find the PERFECT level of gravity. Too much, and you are constantly carrying 2 cars on your back as you walk around. Too little, and you will just float away.