It doesn't seem possible to select a Windows 7 library as the folder to select wallpapers pictures from. I wanted to create a new library, say "Favorite Pictures" and point Display Fusion to that. Then I could add/remove other folders from the library as desired. When I import pictures from my camera, it autocreates a folder for each day, adding all of these to Display Fusion is tedious, especially since I need to repeat for each monitor.