OK Leo, here's what I did.
Opened 4 filemanagers at the same time, each a quarter of my laptop screen; Was Windows'8 explorer, xyplorer, xpolorer2 and DO.
All focused to same files in same folder : c:\test, conatining test1.txt, test2.txt and text3.txt.
Then i deleted test1.txt in DO, using the delete keyboard key : file is deleted from disk, disappear from all filemanagers file pane window but DO.
Then i deleted test2.txt in DO, using genuine DO right click menu delete file option : file is deleted from disk, disappear from all filemanagers file pane window but DO. DO is still showing test1.txt, test2.text and text3.txt
as others only show test3.txt file.
Then i deleted test3.txt with my custom right click menu secrue delete option : file is deleted from disk, disappear from all filemanagers file pane window icluding DO.
At the end of procedure : All three files are deleted from disk, xyplorer xplorer2 and windows explorer don't show them anymore, and DO still shows test1.txt, test2.txt.
BTW, the GO Refresh workaround is really bad, as refreshing lister always make it back to top directory, even if the deleted file is at bottom. Boring too.....
IS it clear and useful Leo?