チャット設定が見つかりませんか？

[dsims (Daniel)]

I am the site admin and I do not see any to manage/delete any chat channels.

from Discourse Chat:

@Discourse

Closing and deleting channels

Admins and moderators can close or delete channels from the Browse Channels page, using the icon next to their Channel name. A closed channel can be reopened any time, but deleting a channel is not reversible, so there is an additional confirmation check in place.

[dsims (Daniel)]

update: I had to open the channel, then click on the title again to get to the settings page

[awesomerobot (Kris)]

Glad you found it! I believe the cog icon was removed at some point, so we need to update our topic.