By dragging a file into the Sorter I want DTPO to only indexing the file, but not to import it. Is there an opportunity to change the preferences or to have a shortcut to change the behaviour of Sorter in this manner?
Press shift-control while dragging from Finder to a Sorter location. Be sure you see the swervy arrow as you drag the item over Sorter, else you’ll import the item.
Can you verify this, korm? I can see the arrow icon but post-drop the files do not show they are indexed and the path in the Info pane is in Files.noindex.