In the Teacher’s Notebook
Before selecting the course/subjects, you have a selection table with options to limit or expand the selected group of students.
At the beginning of the semester, when course registrations are still in progress, it is especially important to select the first option (indicated by the arrow in the picture)“including registered” by checking this option you can select students who have only registered but not yet registered for the course.

If you have already selected the items differently, or if you need to change this setting for already selected items, you can get to the home screen using the “change restrictions” link – again shown with a red arrow.

Explore more options in related topics: