Enable the "All have one" feature, And then click the new icon in order to see the folders list. How about if Q-Dir were to remember this setting each time I start it?. Whoops, I just found that: I select [Extras]->[Starting As] and selected [Remember last]. OK, it is now a minor quibble - this is not in the most zelbsferschtendlich (intuitive) place.
Copy and working copy of source code I often use this to copy files between two locations that have the same directory hierarchy. For example, source code control local copy and working copy of source code .