Ah yeah to configure it you can do it through GUI or cli
Ill show you thoguth CLI
First you need to create the vlans in the controller
Second step you need to create the vlan pool like you can see down.
(config) #vlan-name Students pool
(config) #vlan Students 201-203
Asyou see you are putting a name to the vlans 201, 202,203 and the name of those 3 vlans is Students
You can check the vlan mapping
(config) #show vlan mapping
Vlan Mapping Table
------------------
VLAN Name Pool Status VLAN IDs
--------- ----------- --------
Students Enabled 201-203
Now you got the name tied to the vlans you can go to the virtual AP and instaed of selecting one vlan you can select the name! in this case, select Students
I dont know if its clear or there is something you didnt undrestand?
Cheers
Carlos