We noticed that on the latest Discourse, for individual chats, there is an after-chat-channel-username outlet, but such an equivalent doesn’t exist in the group chats after-chat-channel-username.
For example, we would like to render a icon or ... after the chat title to make it more intuitive that there are per-chat settings available.
In our community, most users didn’t even realize that clicking the chat title opens the settings panel.
If you’ve got someone who knows how, submitting a PR night make this happen sooner. In general they are open to adding plugin outlets as they don’t cost much.