How do you duplicate current open Finder view?

"open a new window.
choose ""Go -> Go to folder..."" or hit Cmd-Shift-G.
drag the proxy icon from the first window (the little icon that appears in the title bar) to the location field in the second window.
hit return."

"With your Parent window open (I prefer Columns View) just drag the main folder (the one that contains most of the files you want to transfer to the new window) into the sidebar on the left > under PLACES. This will create a temporary folder alias in all of your windows, in the same place.

So it's not a quick key but now you can just hit CMD + N and only have to click the new sidebar folder. Saves time."
"With your Parent window open (I prefer Columns View) just drag the main folder (the one that contains most of the files you want to transfer to the new window) into the sidebar on the left > under PLACES. This will create a temporary folder alias in all of your windows, in the same place.

So it's not a quick key but now you can just hit CMD + N and only have to click the new sidebar folder. Saves time."

"You might find the Finder replacement ""Path Finder"" interesting. It allows you to open a second pane with the click a button (they call it a ""Dual Pane File Browser""). It also has a little clipboard area that you can temporarily pin files to while you navigate from window to window.

See http://cocoatech.com

Lots of other cool features - eg the ability to show invisible files, open a CLI at the current path... etc"

"It's not possible to execute menu commands while dragging a file. Otherwise, Ctrl-Cmd-Up would be what you want (press Ctrl and look in the Go menu).

I tried creating a Service using Automator that performs a similar action, but that cannot be started while dragging either.

For reference, remember, it didn't work as I hoped:

tell application ""Finder""
set topWnds to every window whose index is equal to 1 as list
set topWnd to first item of topWnds
set cwd to target of topWnd as alias
reveal cwd
end tell"