Swapping two cameras

I'd like to swap a 6mm cam in my garage ("Garage Cam") for the 4mm cam in my backyard ("Backyard Cam"). I think the coverage will be better at each position after the swap. Couple of questions:

Is this a simple matter of powering down the system, swapping the cameras, and powering the system back up?

Or:

Will I need to do anything else, such as resetting the cameras prior to the swap and start fresh?

I also don't know if each camera's settings follow the camera, or do those settings...

Swapping two cameras