@Voyeur House TV Its absolutely a bad idea to dismount all cams during maintenance as it causes many problems regarding focus and positions of cams. Still many cam issues in realm2:
Cam5 is still out of focus
Cam6 is too low now.
Cam2 must be turned to the left and tilt a little downwards as it no longer shows the whole sofa
Cam3 must be turned to the right as it does show too much of the wall and you cant look in hallway really good.
Best would be to take pics from before maintenance and adjust positions of cams according to them.