Could someone familiar with TouchPro thermostat help me resolve some questions? For house with 5 different zones and 5 TouchPro thermostats, how to turn on or off all of them at the same time using RadioRa2? House guests won't have the phone application , so is it possible using RadioRa2 to turn them all at the same time on or off with keypad? Which keypad could be used? Does it require any other RadioRa2 equipment?