Once the courses are added, in order to add learners to a learner group, you can:
1. Click on "Tools" on the top right corner of your screen.
2. Select "Add Learners"
3. You can search for the student names from the search bar and
4. Click on "Add Learners"
Once the learners are added to the group, you will be able to view the number of assigned learners to the course.
The courses for which the auto assign is not checked or not available, the learners will not be added.