I’ve spoken to ecobee directly about this, and they’re not going to do it. Perhaps something from beestat? I would like the ability to save different seasonal profiles so that I can easily switch day from my heating for winter settings to cooling for summer settings.
This is outside the scope of what beestat currently tries to do as this requires write permissions to your thermostat. Beestat only has read permissions.
I’ve considered adding the ability to do things like this, so it’s not off the table. I just focus more on the data and reporting. You may be able to do this with the ecobee wrap app.