The old 4.x way of doing AP Groups and WLAN Override

Things have changed a lot since 4.2, but for the lab - time is standing still with the 4.2 code.  Don't forget that you'll be expected to do things as the used to be done, not as they are now in 6.0 code..
AP Group VLANs with Wireless LAN Controllers Configuration Example
Configuring AP GroupsIn a typical deployment, all users on a WLAN are mapped to a single interface on the controller.