Display page tree in "add to menu" admin?

I’m looking for a solution to viewing pages with their hierarchy in the menu admin screen. I can only find plugins that show nested pages in the main page screen, which doesn’t help.

I’ve got loads of pages like this:
Artists
– artist 1
–discography
–about
-artist 2
–discography
–about
etc.

If I’m trying to add different artists to unique menus I can’t tell easily which sub-pages are which, because they have the same title.
Similarly, I use the “Display widgets” plugin to only display widgets / custom menus on certain pages, and the list of pages is always represented as a flat list.

Does anyone know of a solution? This is a major limitation if one is trying to use pages (not posts) to make WP act like a grown-up CMS.
Thanks!