Yes, but I think Dan is hinting at some problem between CL and third parties wanting to make their own plugin - so for THAT purpose the ProPack plugins aren't relevant since they were produced by/for CL, not by Maxon, Discrete etc. Actually, Vue doesn't have a plugin as I think the term is used; Poser must be closed for Vue to read the PZ3 file. It also sounds as if the latest patch to Vue is going to introduce P5 compatibility at the expense of P4, though with a workaround, which is a worrying sign for Vue 5.