This is what the settings used on the GUI image above did to a morph on Antonia.  Full-head shaping morph is applied on the left.  On the right, OpenLips has been subtracted, along with vertices welded to the Neck, material group Brows, any zero deltas, and custom group NewGroup.

I'll get together basic instructions for the script and put them up first thing tomorrow.  I think the script is fairly straightforward.  Hopefully.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.