so I have two SSID groups, each with an SSID called "Find Me", which I've added to each of the WLAN Groups below.

Now on my test AP, "BwayNoc AP1" I've got my fresh AP groups selected.

And here is how I have the adjacent (AP 4,) AP programmed.

assuming of course that AP4 would fall too close to AP1, and need its radio turned completely off.
I may be missing the point though, so don't hesitate to call me out if I'm not "getting it".
Thanks
-Andrew