Are there several weighting modes?

Yes. By default, the weighting is calculated based on the services, as you have entered in the displays Pre-incoming year > ETM > Services and/or Pre-incoming year > Provisional classes > Services. In the display Pre-incoming year > Provisional needs > Distribution Table of Means per Discipline, you can apply for each discipline another weighting mode: right-click on the DTMD, then select Static weighting set by... > the timetable/the preparation of the courses/the distribution of the services.