I'm working on a site with hundreds of imported pages. Many of them won't be in a menu and are findable by using site search. We have a contextual sidebar menu in the left column and when these non-assigned pages are viewed, the left column is empty.
I'd like to add a default menu (and breadcrumbs) for any un-assigned page. Is there a way to detect if a page isn't in a menu and use a conditional to load a default if no match is found?