You can also assign additional material zones to the hair,if needed; then apply transparency to the zones that you want invisible. {I'm not much of a modeler; but...} You can open/ import the obj in a modeling application (Blender, Carrara, Hex, Modo, ..., ...), and remove the unwanted parts; then simply export the remaining part(s) as an obj, and import it back into Poser. (It will then act as a static prop.) Now, after I've said all that; I think the transparency method s probably easier/ less time-consuming, and you'll still be able to use any movement/ styling morphs that might be present in the hair. (Assuming that it was a conforming figure at first...) Well, I hope that my speculatory rambling was helpful. (: