Thank Utaw! It's a good idea but I'm almost giving up on this... The problem is that I have 1 T4 and 1 K4 per room (X5). So the client will change the temperature in both panels not to mention if he presses "All" from the Entry K4. Even if I do it with system flags I'm afraid of the reliability. And they'll also be controlling shades, lights and 6 AV systems..
Thank you though, I really appreciate your input.
Regards!