@SYNTAX:cumode@

This command is used to manage the client's modes on the channel.
Most of the modes require that the client which changes some
client's mode must be channel founder or channel operator.  The
mode is added by adding + before the option(s) and removed by
adding - before the option(s).  The following channel user modes
are available:

    a <nickname>[@<server>]

        Set/unset all modes (cannot be used to set
        both founder and operator rights, can be used
        only to remove both modes at once).

    f <nickname>[@<server>]

        Set/Unset channel founder.  If you are channel
        founder you can set the channel founder authentication
        using CMODEc command.

    o <nickname>[@<server>]

        Set/unset channel operator.  Requires that 
        you are channel operator or channel founder.

    b <nickname>[@<server>]

        Set/unset channel message blocking.  Client
        may set this mode only to itself.  When set
        the server will not send channel message to
        to the client.  This mode can be used to block
        unwanted messages if desired.

    u <nickname>[@<server>]

        Set/unset channel message blocking for messages
        sent by normal users.  When set the server will
        only deliver messages sent by channel founder or
        channel operator.  Client may set this mode only
        to itself.

    r <nickname>[@<server>]

        Set/unset channel message blocking for messages
        sent by robots.  When set the server will not
        deliver message from users that has been marked
        as robots.  Client may set this mode only to
        itself.


See also: CMODE, UMODE