I often receive PDFs from others with thousands of pages and hundreds or thousands of bookmarks. When I click on a bookmark, Acrobat shows the matching page. This should also work in reverse; i.e., if I go to page 40,295, DC should display the matching bookmark for that page. There is command in the Bookmark menu called Expand Current Bookmark (it should be named "Show bookmark for the page I am on"), which helps a little. But what is really needed is for Acrobat's bookmarks to be synchronized with the pages in a PDF, so as we go through the pages, DC shows the bookmarks for the page we are.

This would REALLY help when working with huge PDFs with hundreds or thousands of bookmarks.