In cases where an individual course involves teaching by two or more faculty members, it will be possible to add them immediately after the student's registration, during which time only one faculty member can be added.
Then, after the student is enrolled, navigate to Didactics → Individual Lessons and click the button the edit icon on the relevant course row.
Click on "multiple lecturers" to enter two or more lecturers from among those related to the chosen subject.
Click on Edit Course to finish the operation.
N.B. It will still be possible to add or remove one or more faculty members at any time after the course has been created by entering within the course tab.