Can someone please confirm if it is possible to create schedules where the heater is on or off? It doesn't seem possible to me. I think the only way I can achieve this is by creating groups where the valve to my heater is open or closed an the heat setting is always on. Maybe this is ok but every time a different schedule starts, the heater will start until it realizes there is no flow and then stop. I imagine this is not great for the life of the heater. I really don't understand why there isn't a "heat on" setting for circuit groups or features.