very cool! Now... for my enhancement requests
-- allow both this new 'virtual folder' and the real physical folder both to be open at the same time in separate contact sheet tabs
-- the virtual folder could be nice and remember my contact sheet settings (thumbnail size, sort, rating/color selects). I don't use currently use arrangements, but I suspect that those that do would potentially want different arrangements for different virtual folders.
-- 'remember folders' shouldn't require multiple folders if the above enhancements could be put into place.
-- if I go nuts in creating virtual folders, then I'll want to just be able to do a Open Virtual Folder from the file menu, and remove them from the favorites pane.
Ron