This is a complicated problem and I'm afraid I have no real answer for you at this time, unless you have access to Zbrush and GoZ, at least as far as my knowledge goes. I do not use blender so I have no idea if it contains a process that would help with this. DAZ Studio's Morph Loader Pro contains a process but again my knowledge is limited so I couldn;t begin to say if there is any way to use it in this case. The problem is Reverse Deformation, in short a way to take posing and or existing morph data out of the morphs you are writing back to poser from your program. LHomme is a morph and if you simply export his existing shape (when turned on) out of Poser and work on it in a modelling program, then save an OBJ of your morphed LHomme, it reads back into Poser with the information of both LHomme's morph with your morph 's information superimposed over it, so when you dial in your New morph you are dialing LHomme's existing morph also, causing in affect the LHomme morph dialed to 2 rather than 1 with your morph changes included. LHomme was morphed, I believe, using GOZ which contains Reverse Deformation, in effect subtracting the LHomme base morph and leaving only the changes you made in the program and creating a morph with just your information (very simplified, sorry). So you could use GoZ to make your morph. There WAS an app named Poser Morph Loader that independantly did this so that posed or morphed object could be saved out and read back into Poser with only changed information creating a NEW Morph without pre-existing information> However Colorcurvature, it's author, hasn't been active in a long while, The app is listed as "unavailable" when searched in the marketplace, and I can't find an active link by searching the web. Other than those 2 options I have no real advise but I would hope someone reading this might have some knowledge of how this could be done in Blender.I've been trying to think of a work around for this but haven;t come up with one so far. Maybe someone else has an idea, I would be very interested in that as well.