Appreciate if someone can tell me if my expectation is correct or incorrect. I have 3 zone heating (CH up, CH down & HW cyl). There is a hive active heating thermostat which covers CH down & HW on one thermostat and receiver. I can control both CH & HW from this one thermostat. There is a second thermostat and receiver for the CH up and this is working fine for that CH zone. My question is, the CH up, although its only meant for 1 zone, it also has the second boost button for HW, but this does nothing. Should I expect the HW boost to also trigger the HW request? All.decivea are available in the app, and I can trigger from there, but I would also have expected the second thermostat in smart multizone heating to also establish this connection. Any experiences appreciated. Thanks all.