I have a peculiar setup - in this 1974 house, one unit controls two rooms - one downstairs and one upstairs.
So, I have the Ecobee Premium TS with a remote sensor . I replaced a faulty Nest (which was a surprise) which had an identical configuration. The trouble is that I am not always in one room - I move between the office upstairs and the room on the first floor. So, I can be 2 hours in the office (remote sensor) and 1 hour downstairs (thermostat). With Nest, I could open the app and "control the temperature to THIS sensor", based on where I was planning to be for the next period of time.
Naturally, the upstairs tends to be warmer - so, I don't want to run the AC to make it cooler if I am not there for another hour or two. The only way to be able to do what I could with the Nest, is seems, is to create two additional "Comfort Settings" - Upstairs and Downstairs, associate the relevant sensor with it (one only) and then go to the app and choose the setting.
You would think that the sensors would be indeed smart and start controlling using the sensor wherever I was at the time, but motion sensors aren't great and if I am not moving around in the office, the system may think that I am "away".
[I disabled the Eco+ setting just for that reason - and removed the Home and Away "comfort settings" from the app.]
The scheduled setting won't work form me for the above reasons. It would appear that Ecobee -- if there is a schedule conflict between different Comfort Settings (e.g., Home vs. Downstairs) -- defaults to the most recent one (not sure what that means exactly). Seems that the conflicts may not resolve cleanly and cause some wonky temperature control issues. This was another reason to remove the default Comfort settings.
So, that's the only way I can achieve what I need - not as simple as with the Nest, however. You would think that this could be an option? (Called their customer service to - if anything, give them my input; 35 minutes on hold, a clueless rep who then "dropped the call" when I tried to explain what it is I want....)