Why not to let users point out folder and get included pages as dynamic list items? That would help building smart menu systems which follow automatically the current page structures. Should be easy to fit into current thinking of Webflow.
In other words, a broader idea: let folder and page names (ID’s) become generic data objects visible to users inside CMS system. They are not useful to everybody but they would help a lot to build powerful automatically up to date menu structures for larger constantly evolving pages.
While that would be great, there should be some more filtering options on filter side.