delete posted messages

Would be great, if there is a possibility to delete single messages within the Chatroom like Miccelito asked for (http://drupal.org/node/840060).
Example:
user1: hello!
user2:f*** you!

Now the admin should have the option to delete just the message from user2!

Thanks for your effort!

p.s. Sry for my bad english (I am German)