Not sure what you mean by link, but they are visible on the same acct . if you want it to average temp, you need the remote sensors that will pair to a particular thermostat. I have 2 units each with 2 zones on my main floor. Each zone has a thermo and a couple remote sensors for each. Each thermostat does it's own thing/is programmed differently. I'm sure with ST or IFTTT I could set up some fancy configs between them all but I really dont need it. I'm more a set it and forget guy.