Excused absences (illness, official reason) use their own limit, separate from skips.
Copy the important bits from the course rules. Your own points are filled in on the subject page.
Each code + class type becomes its own subject (e.g. lectures and exercises have separate limits). Lectures come in as "not checked" (their skips don't count). Exams are added to the calendar. Classes count as attended unless you mark a skip.