When I make a copy of a file in a folder, Dolphin popup a dialog which is File Already Exists. It gives an option that allow me to set new file name. However, It takes 2 clicks. Is it okay with you? I do not like that. I want it make a copy with a suggested name as in XP and Gnome. I believe this can be done in Dolphin's configuration. But I could not find one appropriate.

Thank you.

It isn't possible, you have to tell it to set a new name. Personally I like it this way, I have made duplicates of hundreds of files by accident just by moving my mouse a little bit far too many time in Windows.