Currently, "File already exists" dialog allow user to 1) rename copied file; 2) "Suggest new name"; 3) "Overwrite"; 4) "Cancel". We also need other actions: 1) compare original and copied files (kdiff, meld, simple cmp or other (must be configurable)); 2) rename original file; 3) ask later, continue copy/move; 4) open Krusader main window for examine situation; 5) any other user actions. Reproducible: Always
This is hard to do because the dialog is part of KIO.