Yes - I've just got it to work acceptably on my machine. Now I'll have to add language strings as needed. They are hard coded to start with as I can't tell before it's rather complete which functions/descriptions are the ones I want to keep.

I'll add a language file today - it won't be complete for quite some days.

The button you've marked was originally for adding chapters.
It has now morphed into adding chapters or new questions.

The show-book link you clicked is not complete yet. It's intended to walk thru all chapters and pick out all questions of type 'theory' and present them as a book
with a table of contents. Thus I can write a workbook containing questions and
theory mixed. The student can later print out only the theory part as a 'book'.

I'm working on connecting properly to the grade book. If you add activities to a chapter the format will show a progress bar below (see pic). Also completed activities are marked with a green check-mark.

The reason for posting the new format was to give interested users a chance to comment while the code is still fluid. I'm impressed that you got it installed.
Its still very unfinished code - changes added nearly daily this past week.

Thanks for giving it a spin
Audun