How to get finder to open folders when copying/moving files?
When I copy/move files and am still holding down the trackpad, I often have to copy them to subfolders. When I hover the mouse over the folder, a new finder window pops up. How do I configure finder so that when I mouse over the folder (when I am dragging something to be copied/moved) the folder opens, rather than a bunch of finder windows popping up for each subfolder?
MacBook Pro, OS X Mountain Lion (10.8.4)