setup trackingchannel channel
setup trackingchannel channel j l r
setup trackingchannel j l r
setup trackingchannel remove

The command remove will simply remove any tracking channel. Disabling the feature.
Passing a channel (mentioned or just by name) will set the specified channel as tracking channel.

The option j, l, and r are used to specify what to track in the channel:

• j is to track users that will join (each new user is listed)
• l is to track users that left (each user that was there for more than a minute and lest will be listed)
• r is to track when users will get new roles