Student switches students' group in the course of the school year

A student switches students' group in the course of the school year. The teacher needs to register this change in their course. Go to course settings.
How to change course settings?

In the Students/Group section select "Changes during school year".

Add your change. Select the date for change validation.

Update the number of students in your course beginning the date specified. In this case student Adam Krupa switched to this students' group from the 1st October.

The updated list of students displays in Class register and Grade book from this date.