To make a fc2, you just save the face file in the folder "Faces" in Poser after you haev applied the dial settings to your character. Just click on the + sign in the folder and assign a name to it. To make a face morph as an obj file, choose "Export" from the "File" menu, with the figure selected. Choose "Wavefront OBJ" as file type. The hierarchy editor appears, make sure that only the head is selected. In the last dialog box, select "save as morph target" and you should be done!