change MAC Authentication cnMaestro policy from "global" to "per wlan"

I work at a school with thousands of netbooks.

I can permit only those netbooks authenticate using FF-FF-FF at the end of the mac address, setting Mac Authentication policy to cnMaestro.

But then the ACL is global to all WLANs, so I can´t have different ACLs for students, teachers, BYOD, etc.

Couldn´t be possible to create cnMaestro ACLs on a per-wlan basis?