Subject has to be in consecutive weeks/terms
If you have a subject that has to be in 2 consecutive terms(it cannot be in term 1 and then in term4) you can input this cardrelationship:
So you define that lesson as 2 times in "Any term" and add the above constraint.
The same can be used when you have for example 20 week timetable and certain course has to be in 8 consecutive weeks.