One more thing that may prove useful. For sites with a lot of pages on the same level I find that the admin page list is getting very long and hard to find things sometimes. It might be useful to have the ability to create groups of objects that are all on the same level and be able to expand/collapse them.
For example I may have
and for ease of looking at them in admin I might want to 'clip' tutorials 1-25 together, 26-51 etc so I can collapse them when not using.
You don't always want to add/more/subfolders/or/the/urls/and/nav/gets/huge!