As an admin, I would like to Have a password that maps to a profile. When I create a profile I can add a password. Anyone device that connects to the WiFi network with that password is automatically assigned that profile. 
 

this means I can give all my IOT devices a profile and have them join with the password for that profile. No more guessing which unknown device belies to which profile. Even if MAC changes.

Also means when the kids give out the WiFi password to their friends I can atleast ring fence those devices to a profile.