Only the course -organizer (lecturer/Vortragende) will be imported from TUMOnline. They have access to edit the courses in the matching-system. You can edit the courses after the "students vote period.
You will find the important start- and end-dates for course-organizers here:
http://docmatching.in.tum.de/html/docmatching/index.php/scheduler-course-organizers
"participants"/ "Mitwirkenden" have no access to edit the courses.
If you have an entry in TUMOnline in this course as an „lecturer“/„Vortragender“, than the Matching-System will import you as an course-admin.
You have two options in the TUMOnline to participate on a course.
a. lecturer/Vortragende
b. participant/Mitwirkender
Point b. "participant"/"Mitwirkender" is not enough to give you admin-right, so you have to be Point a. „lecturer“/„Vortragende“.
You can create in TUMOnline a course were you a lecturer/Vortragende, so it depends on you.