So I have a blueprint of my entire basemen with a picture element card. And I have placed state icons for all the lamps (each lamp is a lamp group because it usually concists of 1 or more smart bulbs).
I want 1 extra toggle to turn on/off all lights on the entire floor but don't know how to add that. Floor is not an entity?
I can add "perform action button" but that toggle action is ... not good since I want all lights to go to the same state (like if 1 light is on, turn all off. If all is off, turn all on)