Answer
Buzzen help information for this topic.
Buzzen webchat supports the following commands. They must be prefaced with a /
You can view a menu of these options by typing /? in your chat window.
/Reconnect : auto leave and reconnect to the room
/Disconnect : leave the chatroom
/Clear : clear all the previous text from the chat window
/Away : set an away message and set status to away
/Unaway : set status back from away
/Nick : Change your nickname ( not supported in Buzzen Rooms
/DebugPrint : used to help debug web chat
/Showguestpassstored : show the room guest password if the room is owned by a guest nickname
/SaveGuestPass Save a new guest owner password
/Kick : kick the highlighted nickname in the userlist with a message
/Ban15m : ban the highlighted nickname in the userlist for 15 minutes with a message
/Ban1h : ban the highlighted nickname in the userlist for 1 hour with a message
/Ban24h : ban the highlighted nickname in the userlist for 24 hours with a message
/Topic : change the room topic
/Welcome : change the room welcome message
/+/-Protectionmode