I use aMember on another site and was thinking of switching it all to drupal using a module like this...could e-Commerce module do what aMember does: password protection of directories? I sell downloadable materials and if someone tries to download something without being logged in, they get a log in prompt. Can e-commerce do this type of thing or would I have to do that with access permissions: could e-commerce change someone's role from Role A to Role B for example...or is it only any use with actual shippable goods?