Flag for shoutbox?

Hi, Guys.
Do we have flag feature for shoutbox already now?

So now for the flag, we can attach it to:
1. Nodes.
2. Comments.
3. Users.
4. Facebook-style Statuses
5. Facebook-style Statuses Comment.
6. Etc...

How do i can add the flag for shoubox? No extra module for it at now?
Thanks a lot advance.