Yo. (Yes this is 1991)
So i have two thermostats i want to keep in perfect sync, but unless i'm being blind i don't think there's a built in trigger for that.. e.g. If "X changes" as the trigger then "Sync X Device to Y Device" as a thermostat option on the Actions tab.
On a side note i don't suppose anyone has a sample script they do something similar with that i could modify? If so please post it and i'll send you a list of my best jokes..
Sample: Why can't russians wear boxer shorts? Chernobyl Fallout. Ok actually thinking about it that's my only funny joke.