Rudy,
You can try via remote_ap_cli -A (as Monnat mentioned above)
The command is set snmp
set snmp : set snmp {options}
->version , SNMP version(v2c,v3,both)
->system contact , SNMP V2c system contact
->system location , SNMP V2c system location
->community ro , read-only community name
->community rw , read-write community name
->trap {enable|disable}, SNMP V2c trap enable flag
->trap-svr , SNMP V2c trap server ipaddr
-- Modify SNMP Settings
Be aware you have to be in debug mode to execute the command.
Cheers.