When I try to create a new custom email folder, I'm told that I'm at the limit of my custom folders.  That would be OK if I could rename some of my existing folders to broaden their use and delete the more specific folders I have.  However, I can find no menu or buttons to click when I'm signed in to my Outlook.com account that will allow me to delete or rename an existing email folder.  Any help on this would be appreciated.