@Les:

The results of my tests are worse than I expected.  The process is potentially destructive.  It can overwrite existing morphs in an actor.  :scared:

I initially tested with the genital pz2 I posted, using Antonia-WM.  L_spread2b was successfully injected into Hip, or seemed to have been.  The morph works.  But "Genitals-gone" was removed, replaced by the new morph.  Not a good result. 

A multi-actor pose seems to have done something similar.  On actors where poses were already present, the last one is overwritten.  On actors without poses, one pose only is loaded.  In all cases, the loaded pose is the last one listed in the actor channels.

I tested your "multi-ROOT" pose setup, and Poser ignored all of the ROOT (as PFE calls it) sections after the first one.  The result of loading this pose was the same as in other cases, with only one morph injected and with that overwriting if morphs already exist in the actor.

So not only is this feature broken and dead now, it is something to be avoided carefully.  You can screw up your figure if you try to apply the INJ process this way, by overwriting morphs in an uncontrolled manner.  Do not do it, folks, if you are using P9 or Poser Pro 2012.  :scared:

===========================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.