It can of course happen that you have to offer a particular subject in the form of several parallel courses due to a large number of registrations for the course (or, more precisely, the for course subject).
Use the <Create parallel courses> button in the course-student-overview in order to create additional parallel courses. This function opens a dialogue of the same name which displays the actual number and maximum allowed number of students for all the courses you have selected and which provides a proposal in the 'New course' column for the number of parallel courses that should be created. You can of course modify this proposal as you wish.

In the above example, a proposal is made to create an additional parallel course for the subject inf. 49 students have registered for it bit there are only 25 places available.
Note: Copying parallel courses to course choices
If you check the box 'Add the new courses to the students' course choices', the newly created parallel courses will immediately be added to the corresponding student course choices.