Actually, N3V is a company that hires developers and, regretfully, doesn't hire document writers. They could and, I believe, they should.
One of the great factors leading to the success and popularity of the classic Microsoft Train Simulator were the guides for route building, activity creation, and even the old Microsoft-licensed Sibex guide was helpful. Would that N3V would follow that example. As is, fragments of information are scattered here and there, are often not reliable or up-to-date and, of course, there are always the curmudgeons who have to post the unhelpful "figure it out yourself" responses towards those who are seeking information.