Channel Renaming on Mx

Wouldn’t it be great if there was rename feature for channels on Mx?
Is this possible?

How would you use that? I can see that maybe being able to give a name to aux channels might make things a bit clearer.
I was thinking that something that could be useful would be a simple shared notepad type of thing - that could be used to say what was going on, agree on an idea for a piece, etc. All this stuff goes into the chat but gets lost and isn’t available for the new people that join.