{Has Curious Labs considered redoing or creating an add-on to Poser 4 to include the file directory management part of Poser 5, which are really badly needed in Poser 4?} This is a nice dream to have, but I seriously doubt CL will do this. Once a company has released the next version of the program, they do not release patches to a fix a previous version. Their standard answer is, "You're having problems with the old version? We don't support that anymore. Upgrade to the next version and that should fix your issues."