If you don't have furfur (or a Windows OS), the other advice is to export the hair object as a .DXF and then reimport it, position it and save to the hair library. Before there was the Hair Room, what I used to do was go into the Grouping Tool, select enough polygons from a bald figure's head to spawn a scalp prop, then use the secret hairmaker on the prop. Sort of successful. Just as with the Hair Room hair, this makes a ridiculously hi-res hair object, so if you have a 3D editor, you might care to decimate it to lower the poly count.