My zoning smartapp called ScheduleTstatZones can automate the settings of room thermostats used for baseboards or any in-line thermostat’s usage.
For example, you can define your rooms/zones/schedules. In each room, you can associate your room thermostat (if any). Then, you create your own virtual zones (composed of 1 to many rooms). Finally, you define your schedules (with their own day/time combination, you can even associate a ST hello mode).
In GeneralSetup of the smartapp you have the option to **set any room/zone thermostat to eco or off** when the thermostat is not part of your scheduled zones.
For more information about ScheduleTstatZones (look & feel, prerequisites, features, configuration, troubleshooting), refer to the ST community wiki
You can elect one thermostat in your home as the master, and all the ‘slave’ thermostats in your rooms will sync up with it in terms of mode and setpoints.
ScheduleTstatZones is available at my store: