Plugin to manage pages in the admin area?

I have a TON of pages on the new site I'm developing. The site has some parent pages with 10-20 'child' pages.
Is there a plugin or a way to keep all the 'child' pages 'hidden' under the parent, and if I want to see them, I can expand it?
Essentially like the collapsing menus that Windows Explorer has, just for wordpress pages?

I need this because with a 100 or so page already, I have to click through to the last page before I can get to the page I want to edit...and it's pretty confusing when you have so many pages showing up together.

 

yes this would be a very handy plugin to have, I have just been clicking to the page until i find the correct section

 

I found this in the plugin repository, but I don't know if it works. Going by the stats, not many people have used it so far.
http://wordpress.org/extend/plugins/collapse-sub-pages/

 

Thanks Cash Nebula - testing it now - will let oyuk now if it works and then DawnBaby can use it too