I've got a group, that is made up of my mobile devices with HA installed on it. I've got areas setup like home for instance, but I also have a zone that encompasses my home called "Keep House Warm"
The idea behind this that I want to create an automation that basically says "If all the devices within the group are in the zone Keep House Warm, do not set heating to away mode"
Does anyone know how I can achieve this? I can't see anything obvious