No, unfortunately not. Since each folder can have its own name, and everyone picks unique names, it can't. Unless you always have a folder named "Group Meetings" or "ToDo" or something like that (i.e. everyone has the same custom folder names). Then you can edit your main.inc.php and where it lists the default folders ('INBOX', 'Sent', 'Junk', 'Trash') you can add whatever folders you want.
Just remember, that if userA has a folder named "Personal" and userB does not, then there might be some errors (or a new folder created for userB that they don't want). So just be careful.