C/addowner

ADDOWNER <#channel>  [duration]

Adds a user to the channel's user (i.e., access) list with an access level of OWNER.

An optional duration may be provided, which will cause the user to be automatically removed from the channel's user once the duration has passed (expired). See HELP DURATIONS for information on how to correctly specify a duration.

Keep in mind that you may only grant a user an access level that less than your own.

NOTE: This command is presently restricted to network staff.