You may make and distribute any morphs you make from the base figure.  The deltas that are created when you make a Poser morph are what you need to package. There are a number of utilities that make it easier but it can be done manually in a text editor. Look at DAZ store for Injection Magic (and a few others)  The deltas are the vector for each vertex in the mesh that specifiesthe move to its new position, they dont let you recreate the mesh. 

As long as you dont distribute anything you did not create you are OK.