hi! when I import a folder into lightroom, (1) all images in the folder, including images from its subfolders, are imported, but (2) the subfolders themselves are not imported. As a result, the organizational benefits of having the subfolders is lost. Am I missing something simple? Is there an easy way to move the subfolders themselves in, so the initial organization of the images -- i.e., subfolders within folders -- is maintained? Thanks --