Well, there are some fonts for this, namely freta.ttf, fretb.ttf...
But they're not part of NWC software itself.
I remember someone had posted one or too fonts to "compose" chords graphically, some time ago. Being at office I can't look for it on my computer.
For fingering, are you talking of numbers on black circles? Otherwise,
p,
i,
m,
a are usually used, AFAIK (for picking hand).
NWC may suit your need, just try it... the shareware version is not limited in its functionalities.
You may find guitar scores on the
Scriptorium, and one or two (thanks to missing Fred Nachbaur) on
one of my pages.
HTH, M.