You can create a chat room only if the administrator has granted you access to create chat rooms. The default access does not allow you to create a chat room.
Click Tools > Chat Rooms, then click Create.
(Optional) Select the owner of the chat room.
By default, the owner is the user who is creating the chat room.
Type the chat room name.
(Optional) Type a description and welcome message for the chat room.
(Optional) Select the maximum number of participants.
The default number of participants is 50 and 500 is the maximum number for any chat room.
(Optional) Select if you want to archive the chat room.
(Optional) Select if you want the chat room to be searchable.
(Optional) Click the Access tab, then select the access rights for all users or a particular user.
Click OK to create the chat room.