Hide child pages from menu tree Hopefully some wise Drupal guru will be able to help me with this one.

I'm using menu and menu block to output a side menu in Drupal 7.  Using Panelizer, on a basic page I can customize display and add a view pane (Case study: Teaser), which will display a list of case study teasers:



I can add a case study content type, which provides a menu link.  The problem is over time there will likely be hundreds of case studies, and it will look unwieldly to have hundrens of children/sub-pages in the menu.

I could list the links and disable them from the menu (and also keep the breadcrumb path):
 

However, various admin and editors will be using this, so ideally I'd like some functionality whereby sub-pages do not appeaer in the menu when a Case Study content type is used, but the breadcrumb path is still shown:


If anyone could point me in the right direction, I'd be eternally grateful :)
If you don't need the case studies to appear in the secondary nav/sidebar menu, you could try using the Path Breadcrumbs module to set custom rules for any of the following scenarios:


all "Case Study" content resides in a fixed hierarchy
"Case Study" content with a specific tag goes in a fixed hierarchy
"Case Study" content breadcrumbs are defined by url alias/path that reflects parent pages.


The module is rather flexible in the rulesets you can define.