Here are some Zscripts with various approaches to making hair in Zbrush. Be sure to select 'Show Actions' to see process
They were made in Zbrush 1.55b, so hopefully they work in Z2.
Note: The Strand Method is loosely based on Ron M's method using the Z Cone Primitive. Hopefully Ron will post a more thorough Zscript exploring his technique in the near future.