If there's anyone out there who could help me find a solution to my problem I'd be eternally grateful. I've a Aton ah66t and I'm controlling it with a Logitech harmony one remote. I can't figure out how to turn an individual zone of on it's own. I know I can turn the whole system off by pressing the sysoff button but I want to be able to just switch off one zone without turning all the zones off. I've read the manuals until I can recite them verbatim and been on a lot of website forum's but I still don't know the answer.