Hi @mals ,
Yes, my Ecobee device (DTH) and my zoned heating/cooling smartapp called ecobeeSetZoneWithSchedule (ESZWS) can be used to orchestrate in a smart way your ecobee and your window units based on the concepts of rooms/zones/schedules.
I don’t know which window unit’s make and models you’re planning to use, but you should also look into the Flair Puck which allows you to control windows/split/portable heater/coolers thru IR. If your make and models are supported by Flair (check on their website: www.flair.co or contact Flair support), then under SmartThings, you could not only turn them on/off, but also control the fan speed and get more useful information from the integration…
For details about the flair integration to ST, refer to
http://thingsthataresmart.wiki/index.php?title=My_Flair_HVac_Unit
For more details about My Ecobee device and ecobeeSetZoneWithSchedule, refer to the ST community wiki:
http://thingsthataresmart.wiki/index.php?title=My_Ecobee_Device
http://thingsthataresmart.wiki/index.php?title=EcobeeSetZoneWithSchedule
Regards.