You will have to use ACLs in CSS to achieve that
for e.g
acl 1
clause 1 permit tcp a.b.c.d 255.255.255.255 destination content owner_name/rule_name prefer service
apply circuit-(VLAN1)
where a.b.c.d is the source address.
Please read the CSS securtiy guide before implementing ACLs on CSS. You need to have a "permit any any" ACL on the remaining Interfaces.
Thanks
Syed