how to set different ssid on 3 R320 ap

[wanji]

hi...i am using 3 ap R320...using same vlan dhcp...using standalone firmware...but when i set different ssid...it only show 1 ssid only...how to setup 3 different ssid ya ??want to set the is name is ruckus-01...ruckus-02...ruckus-03...but appeared ruckus-01...pls help with this master..can disable it ?