I would like to control my underfloor heating with W100 thermostats. how can I link the W100 as a thermostat with an output from the T2 so that the temperature control works via the w100? it should be possible to adjust the temperature on the w100 using the plus and minus buttons and the set temperature should be shown on the display. is this possible? if not, I think this is a function that many users will need.