I have a hierarchy of content types that's currently two levels deep, and could go to three. These are for legal documents and may ultimately be used as templates in Word... which is why I opted to go for content types vs managed metadata. I have a total of about 30 content types.
Here's my question. In my document library, how can I enable the out-of-box metadata navigation hierarchy to display something other than a flat list? It completely flattens my content types, so that research documents get mixed in with litigation documents (which are separate branches on the tree). I know I could get the effect I want if I switched to managed metadata, but then I'd lose the ability to template.
Is there a way to display the content type hierarchy, in a tree view, as metadata navigation?