A study plan has to be filled in as described here, by selecting among the courses available from the application, those which satisfy the rules defined for each cycle. The study plan can be updated in given time slots defined by the School. Any change in the study plan should be approved by the PhD board.
Please note that since the PhD board cannot know when you fill in or update the study plan, you should send a copy of it to the PhD office (firstname.lastname@example.org).
Schedule and programs of each course is available on the course description here, and also from the study plan application.