Yes, it is a Yamaha Receiver and I used this SmartApp. I think I figured out the logic of what I am trying to as part of a larger overall “Away” scheme. Does this look good? Thanks
If: Each of Sarah and Matt’s presence is not present AND Kid Sensor is or is not present,
Then: Set Location Mode to Away, Set Nest Upstairs and Downstairs to Eco and Using Yamaha Main Zone Turn Off.