Is it possible to edit documents using Quickmanager (or similar) from a ditto list summary page without forcing admin users to visit individual resource pages?
Not yet. But it’s listed as the most important addition in todo list for QM+ version 1.4.
Unfortunately there isn’t any planned timetable for version 1.4 for now.
Thanks for clarifying, QM is a great add-on for MODx and having QM with Ditto would be an ace addition.