Multiple Google Home Devices - Room Assignments

Hi all, I just added 2 Google Home Mini speakers to my system. This makes three devices, and, if my daughter comes through on her promise to get me another one for Christmas, I will have four. My question is: can I set up duplicate spoken commands either in ISY portal or Google Home that are dependent on which home device receives the command? For example, I would like to walk into any room with a home device and say ‘Hey Google Lights On’, and have it turn on the lights in that room only. At the moment, I can’t see any way to do this. Wondering if it is possible, and if anyone has done this yet? Thanks, Jack.