To  | 
Do this  | 
What happens  | 
make an instant message moderated  | 
Select "Moderated".  | 
Other participants can no longer contribute. The following icon beside their names indicates that contributions by them are disallowed: 
 
 | 
| request permission to contribute | 
Click Hand Up: 
 
 | 
The "hand up" icon is displayed beside your name.  | 
| allow a participant to contribute | 
Click the "disallowed" icon beside the participant.  | 
The icon beside the participant changes to indicate that contributions are allowed: 
 
 | 
| prevent a participant from making further contributions | 
Click the "allowed" icon beside the participant.  | 
The icon beside the participant changes to "disallowed".  | 
make the instant message nonmoderated again  | 
Clear "Moderated".  | 
Everyone can contribute freely. All special moderation icons are cleared.  |