What would be the correct way of using (if at all) the "mailboxes" directive with IMAP folders? I want to be able to use the space key to cycle through mailboxes with new email, but I'm not sure how to do it with IMAP folders. Up until now I've been using the mailboxes directive to list all my IMAP folders, but it's annoying to update that everytime I add a new folder. Is there another way? With IMAP subscriptions perhaps?