How do I switch or move a student to another class/group without losing them and their data?

Login to your account and click on your Students tab. Go to the "Groups: column on the left. Click on the class/group you want to edit. This will highlight the class/group name in black. In the “Students” column, on the right-hand side, the student(s) that are a part of that group will be highlighted in black. Click on the small box to the left of the student’s name and you can toggle between making that student a part of a designated class/group (with a √ check mark) or removing them (leave the box blank).