Since the request was for a wiring diagram. Have something tried and included a final plan www.roennberga-belegungsplan.blogspot.com . There is then the assignment on a recognizable look and more detailed explanation is in the posts possible, how many who
etc. Where now run along the info, who inputs the data? I can also access more persons on the scene. If I get the data I can maintain the plan.
Perhaps the plan should be part of Roennbergaseite or better, a link to it.
happy suggestions and exchange.