I hate to be the bearer of bad news, but this feature request has been declined.
-WarrenAlex supported this idea ·Alex commented
I seem to be running into a similar problem, is it part of the same thing?: We've renamed a channel, but it doesn't carry thru to the header under the Files tab. If I try to change it in SharePoint, it just creates a new SharePoint folder of the new name. If this is indeed how it works, then the changing the name of the Channel is not really functional. So I'd need to create a new channel... but now there's discussion content built-up and I don't see any functionality to transfer that content. I wish we hadn't been able to change the channel name because then we would have started a new channel and not been in this situation.