Barring any built-in soft body tools, one would be left with either Python or an external application to handle simulations.  Python could do it using a system of virtual "springs" between vertices, but it would be slow.  An external application would involve the hassles of importing and exporting data for processing.

With a few tweaks and additions to the cloth room, some soft body dynamics like this might become feasible.  Volume retention would be one such addition.  One hopes someone from SM reads posts like this and maybe at least thinks about possibilities.  :unsure:  They've been wowing us with the upcoming new release, so just maybe they'll think about other big, new additions, in the future.

===========================sigline======================================================

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.