Set your parameter dials to whatever produces the desired morph. Create a morph target for the desired body part & give it a name. The new parameter dial will show up at the top of the heap of dials for that body part. Zero out all the other morph dials (not trans dials) below that. Set the new parameter dial to 1. Select Export from Menu. Select Wavefront OBJ from submenu. There are a couple of other selection screens that come up which should be no problem. But the important screens are the Hierarchy Editor screen & final choice screen about how you want to export. In the HE, deselect Universe, then scroll down to the body part affected by your new morph target. Click on that body part & click OK. On the next screen, deselect all the choices except Save As Morph Target.