In assembly room menu "File, edit, view, insert, windows, and help" In modeling room menu "File, edit, sections, arrange, geometry, windows, web, help" There is only "3D Boolean" in assembly room under "Edit" menu. It is not part of tutorial in the book. It won't boolean substract my head obj and spline objs. I need it to happen so the spline objs won't touch the head for the dynamics in Poser. Waldoo