To make classes isn't too complicated. Making the Erudite might be worth a try. You can look at the Help & Tutorial in HL and the Help in the Editor. Also, if you load up existing classes in the editor [ using "New (Copy)" ] you can look at how someone else put them together.
Also, ShadowChemosh has set up a bunch of useful info in the forum:
Hero Lab Help -
Hero Lab FAQ,
Editor Tutorials and Videos,
Editor & Scripting Resources.