How do I modify my chatbox features?

Hi there, please can anyone tell me how I can modify my chatbox features, like reserving chats for moderators and other special users? As in, how can I shield private conversations in the chatbox from general viewers or low active members?
Thanks for the anticipated reply.

Sorry but the chatbox on the forum doesn't support private rooms(as far as I know). If you want to do that you can search the internet for another chat box code and then make a topic in which you add the code and change the permissions settings for that topic so that only a group can view it.

Thanks,luky....but can u or anyone else give me a specific weblink that has the chatbox code that I can apply inside a post? Most of the sites'codes I've googled is not compatible or they are in flash format. Or maybe the forum chatbox code could be copied and pasted into a post?
Thanks