I have already proposed to Viart that they create a user group to help to build a useful manual.
This would be a mix of programmers and techie people as well as people, like me, who are marketing and sales pros. Such a mix will address quite different needs and could make a manual incredibly useful to everyone.
My suggestion is to take each section at a time, get all the questions, problems and ideas from everyone on that section - what is there, what every detail actually means and does, what tricks/shortcuts/options are there, how to make the details/features work (in ways that are not so obvious, perhaps?), how to add further benefits using js, php, etc.
Then use all that to create the "Guide to Section X" - or whatever?
I am prepared to give my needs, questions and opinions free with the aim of getting more from Viart as I expect so many other will and benefit me also.
So I do hope that they will do this unless there is a better option