Hi Ken
Sorry for the delay ( we are not in the same world time zone .. )
I answer your PM quickly this morning before the " student return's rush" ...
I sent you the result of the SQL request you recommand : select contenthash,filename,filesize,timecreated,timemodified from mdl_files where filename like '%.mbz';
and to answer your question below :
ach time, duplication is intended to create a new course that is largely identical for each of my new student groups, but that I can occasionally adapt according to the specific needs of each group.
The quizzes are then adjusted for each group at the time of assessment, but they share a common question bank. This question bank grows every year with new questions based on the specific situations encountered by each group.
Actually, I think I should be using Moodle’s metacourses, but I don’t have the specific knowledge required to make proper use of this feature, which to me is not clearly or sufficiently documented.