o - Channel Operator
Gives the user whose nickname immediately follows the +o operator status in the room. Channel Operators are able to set the configuration of a room with the exception of a very small quantity of Server Operator modes.
Privilege: Channel Operator
Examples:
/mode #webchat +o Mark
/mode #webchat +ooo Mark Jennifer Estrella
O - Channel Overflow:
If you set a user limit in the room and have mode +O on, it will redirect the users in the second room. To use this mode you must set the channel +l (limit), when the limit is reached the next user to join will be sent to the Overflow channel. See also CMODE l
Privilege: Channel Operator
Examples:
/mode #webchat +O #lobby