Chatroom question

I just installed the chatroom module (version 5.x-1.9) on a client site, and thus far it seems nice - very simple to set up and use.

Except for one thing: I can't figure out how to END a chat on it, or delete one. If you start a chat, it shows up in a list of "Open chats in this room", but there doesn't seem to be any way to close it or otherwise make it go away. I'd like to be able to delete the test chat I created to try it out, but can't find a way to do that.

It looks like the module treats the entire chatroom as a node, as opposed to individual chats, which seems kind of counter-intuitive to me. The site is only going to have one chatroom, so it would be nice if there were some way to manage individual chats within it. But maybe there is and I'm just somehow not seeing it?