channel command is used to set the active channel that Zira will be adding reaction roles in.
z/channel 1234576890 # by channel ID z/channel #welcome # by channel name
Zira will need the
Read Messages and
Read Message History permissions for the channel you want to use reaction roles in.
See the Discord help page Where can I find my User/Server/Message ID? for instructions on how to find a channel ID.
If you would like to switch to another channel, run the command again.
See Message for instructions on setting up a message with reaction roles.