There is obviously a way to make MOR files that automatically injects the morphs needed when you load it from the Pose library. There is a V3 character for sale at RuntimeDNA (she's called April) that uses this technology. You only need the expression morphs pre-injected in Victora 3, everything else is injected with the MOR files. I haven't bought this character (yet) so I can't dissect the files and see how they solved it though.