I propose that a chatroom owner should be able to change the chatroom's associated SE site. I recently created a chatroom to promote the Korean Language proposal at
https://chat.stackexchange.com/rooms/30769/korean-language-discussion-room-commit-stage
Somehow it got associated with TeX.SE and it turns out that I cannot do anything about it once the room is created
Since this chatroom was for promotion of an Area51 proposal I think it would be better suited being associated with Travel.SE or Linguistics.SE, possibly even Chinese.SE and Japanese.SE
Other features that would be nice to have:
- Associate a chatroom with more than one SE to give it more visibility
- a more intuitive user interface in the chatroom creation page