Applescript-how can I expand a list view window's contents so everything shows hierarchically and expanded Given a root directory upon selection, I need to traverse the directory and all other subdirectories, expanding all subfolders, so that everything shows hierarchically in the finder's list view.

This answer select-all-non-folders-in-an-expanded-list-view-window acts to select all items in an expanded view. 

I need to expand all subfolders, until all subfolders from the root directory have been expanded, showing the contents of the root folder and all subfolders hierarchically.
You can expand all sub-directories with an alt-click on the arrow left of your directory.