To make it easier to build course models, you can activate course sharing.
Mutualization of pedagogical elements (courses, UE, EC, etc.) enables us to define whether a pedagogical element can be shared (mutualized) with other courses, and under what criteria.
When adding a pedagogical element to a course, the search will thus be limited to "mutualizable" pedagogical elements for this course.
Read through the user and administrator manuals to learn how to set up mutualization.