I think most people would choose Option b

The majority of functions on Navcoder are pretty self-explanatory. I reckon most of the problems concern registering the libraries (I know I had an issue), but how much effort is it to

a) search the forum for answers
b) post a question here

Perhaps what would be useful instead of a manual would be to 'mouseover' the options and give a brief note as to what switching on/off that function will do etc....