If a gorilla (or other non-human primate: ape, monkey, lemur) is made properly, it would have to have all the usual 15 separate finger parts on each of its feet as well as on each of its hands, if it is to be able to be posed property. That would threaten to overfill the list of parts that Poser displays sometimes. Thus it would be useful to be able on that list, for each body part, to tell Poser optionally not to display any part which is a descendant of it.