Combining several time limitations 
The following principles apply when several time limitations are in effect for one lesson:
Overlapping term with lessons groups and 'fromto' constraints Lesson groups and 'fromto' constraints have an effect irrespective of whether terms are defined or not.
Lesson data can be saved on a termspecific basis, as described in chapter 'Changing Data in a Term' . The lesson will never take place if there is a time limitation for a lesson in a term in which this is not defined
Overlapping lesson groups and 'fromto' constraints
The principle of lowest common denominator applies to overlapping lesson groups with 'fromto' constraints . If there is no overlap the lesson will never take place.
If there are conflicting lesson group entries and 'fromto' constraints , the 'fromto' constraint of the lesson will apply.
