I use Cubase Lite (which came free with my H4).
I don't even bother with the editing facilities on the Zoom. The screen is far too small, and it's really perplexing.
I just download into my Mac, and do everything there.
(In fact, at home I just feed the output of my mixer into a Digidesign M Box. Only use the Zoom for location recordings nowadays!
Cubase can appear daunting at first, but, you don't have to use all its bells and whistles if you don't want to...Remember to save regularly though!!