You can se a short description of the 6 profiles here.
You must choose one of the profiles by the enrolment, but can use courses from other profiles as electives, so you have a good opportunity to make your own profile.
At the moment a new curriculum is being prepared, so the one you see in the left menu is the old one with only 3 profiles. But several of the courses in the new curriculum with 6 profiles, can be found in the old curriculum..
You can se a course model for the new 6 profiles here