modifier key to skip confirmation on copy/move drag&drop

[GammelBert]

when copying or moving files via drag & drop I'd like to have a modifier key that skips the confirmation dialog when pressed while releasing the mouse button. I think the ctrl key is still free.

accordingly the modifier key could enable the confirmation dialog if it is disabled by default (Options > Misc.).

[MVV]

Nice idea. But I think it would be better to use different modifiers to show/skip confirmation dialog (e.g. Ctrl to skip and Alt to show - currently Alt just works as Shift and useless there) so every user can use corrent modifier regardless of confirmations state.