I think this is to do with the need to initialise a V4.2 figure ready to accept morph injections, by running the post-install script that comes with each add-on product (such as Morphs++, Muscle Morphs, Creature Morphs, etc.).

Somehow you need to run that initialisation script with your own cr2 as the target. I'm at work at the moment (Poser-less) so I can't help any further until I get home (if I ever get back home today in all this snow). But by that time I am sure someone else will come up with an answer.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)