Your question leads me to think you may be thinking that the lights on the camper may be used as backup lights. You can use them for this, but you have to go back to the camper to turn them on. They are not wired up to the truck, but it sure would be handy if they were.
BX
Yes. I have an ARB backup light on the rig now, and I am trying to decide if I want a cab controlled light for backing up, or a camper controlled lights.