Hello,
Thank you for your answers ! I'm sorry I had not replied, I hadn't seen your answers (well that is not going to happen any more with the new Moodle possibility of getting notified of a discussion )
I suppose I was blind... actually the method does now appear (even if it does not appear in the enrolment methods page) it's just anoter way of showing it (I join a screenshot so other blind users will see it too)
