You searched for channel broadcast
1. channel broadcast
Syntax: @ broadcast <channelName> (option)
Certain channels, like mudevent, can be rather spammy. Therefore, some
channels have broadcast options that can be toggled on and off. For
example, during treasure hunt events, if you have the mudevent channel
turned on, you will see an announcement each time a player picks up a
treasure. To toggle that off, the command is '@ broadcast mudevent
treasure'. For a list of broadcast options on any channel, the command is
'@ broadcast <channelName>'.