I had hoped to use your module to limit the choices available to various department editors. Unfortunately, when some department menus have more than 50 links, and there are 35 roles on the site who need to be able to manage some part of the menu system, the interface doesn't scale. I'm not sure the best way to design for scalability, but if it's something you're interested in accounting for, I'd be happy to work with you on it.

Thank you for all your work on this module. For sites with intense hierarchical menu systems, Drupal really needs something like this!