Load Aiko export the only the head as obj delete aiko import the head load v3 make v3 head invisible carefully locate the imported head over v3 neck export the head as obj morph target now aiko's head shape is a morph target and you can use it on V3. It will need some fine adjusts next the neck, i think. You really don't need UMT to do this, UMT is aplicable when using INJ morphs, and because V3 and A3 are Group 2 meshes. If you need M3 with A3 head (???), then you can consider to use UMT.