The different roles available are the following, and can be at platform level, class level or course level:

Role	Platform level	Class level	Course level
Administrator	✓
Student Manager	✓
Forum administrator	✓
Forum moderator		✓	✓
Manager		✓	✓
Teacher			✓
Coach		✓
Student		✓	✓

Administrator: this role gives the possibility to manage the global platform settings, see all students and contents, consult all results to the quiz. This is a platform role attributed when creating a new account in the platform.
Student Manager: this role gives access to some tools useful for the student's management. It has to be granted to the users with "teacher" and "coach" roles in order for them to fully operate their teaching activities. Without any "teacher" or "coach" role inside classes or courses this role won't allow any additional permission compared to a student. This is a platform role attributed when creating a new account in the platform.
Forum administrator: This is a platform role attributed when creating a new account in the platform. It will grant the permission to moderate the forums, and can be useful if you need some additional help to moderate the forums. It won't give any other permission related to users or classes/courses management.
Forum moderator: This role can be attributed both inside classes and courses. A moderator for a course can only moderate the forums inside this course. A moderator defined inside a class will inherit this role for all courses composing the class.
Coach: This role is related to classes. When adding an user to a class, you will have the possibility to grant him a "coach" role. This role will only be effective for this class, and the user can be coach for a class and student for other classes. Inside the courses composing this class the coach will be able to send notifications to students, get the students' list, consult their quiz results, but won't be able to modify the courses' content (theoretical content and quizzes).
Teacher: This role is related to courses. When adding an user to a course, you will have the possibility to grant him a "teacher" role. This role will only be effective for this course, and the user can be teacher for a course and student for other courses. Inside this course, the teacher can manage the course settings, create content (lessons for example), and consult the users' results to the quiz. But he cannot manage the users for the course.
Manager: The manager has the same permissions as the teacher, but is in addition able to manage the users for the course. This role can be granted at class level or at course level. If it is granted at class level, the level will inherit of manager permissions for all the courses composing the class.
Student: The student has only right to consult the data for classes and courses he has been authorized to, to fill in quizzes, and consult his own results.

Note 1: Teacher, coach, and manager roles require also the "Student Manager" permission at platform level to be effective.
Note 2: For advanced users, it's possible to change permissions settings for these Opigno pre-defined roles, and to create new roles with the dedicated Drupal interfaces.

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