Chatting between operators and users only!

Hi, I purchased the membership specified for this plugins. I thought this was ment for using between our organization and our costumers, but I see now that anybody that is on our site, can chat with eachother. Is there something I have misunderstod here ?
I need it to do chat only between operators and users, and not between users and users. and possibly show the status of operators, if they are online or not. Is it possible ?

Nader Eide