Thanks Paolo for this thread.

You solved a problem I had in using morph loader in DS4 with Blender. After many unsuccesfulll trials I found out that the problem was with the group names not being preserved in the obj exported from Blender.

So I made a search, found this thread and had the solution (I didn't know and wouldn't ever have imagined I had to check the poly groups option when importing and exporting from Blender).

Now I can go on...