I would assign these subnets on the same SSID (TEST), when the client connect to the SSID TEST he falls in VLAN01, and when the second client connect fell in VLAN02 and so on (all configured in just an Access Point).
What to do until now was this same scenario by assigning the subnet to each different Access Point (using the option to Override WLAN Group). My need is to get in a single AP.
NOTE: I researched about this possibility, I have seen other brands where claims to be possible in their solution.
Ruckus does not work the way you describe. I can imagine that you could use a
RADIUS server and use VSAs to send back a Dynamic VLAN assignment, that
would tie a desired VLAN to user identity though, not a round robin method.