ERC materials: As soon as you click the little key next to a material parameter, Poser creates a separate parameter channel on the actor, visible in the graph editor and the parm dial palette. The good news is, this info is saved in a PZ2 as a regular parameter! All you need to do now is find your material parameter in the pz2 file and do the usual ERC editing. Email me if you want a sample file or need other help.