Mary Cooch (personal account)

Rebonjour Nicolas. Une capture d'écran de la leçon - ou de la structure des pages de la leçon serait utile, si possible.

Le message "Cette leçon n'est pas encore prête". s'affiche quand vous n'avez pas encore crée l'activité Leçon. Avez-vous réellement créé la leçon ou avez-vous simplement ajouté une description ?

You can move them from the Quiz question bank to the course shared question bank. Click into the Quiz and click the Question bank link - you can then select the question(s) you want to move and from the dropdown "With selected" choose move and select the question bank you want to move them to, for example the course shared question bank.

Yes it is - see the Groups documentation and video and also the Upload users documentation  (section on Enrolment fields) and video.
In short, in your csv file - assuming your users already exist on the site and you are an admin - you need

 

where group1 is the name of a group either already existing or if not, it will be created in the course on upload of the csv file and role1 says either student or editingteacher. More in the documentation.

You mean in addition to where it says We advise that you test the upgrade first on a COPY of your production site, to make sure it works as you expect.