When you're getting started or after you've made changes at your school, you may need to update what grade levels are visible for your school. You can do that by using a simple toggle button.

In your dashboard, click the Admin button then select Manage Years to open the Manage Years window.

Using the toggle buttons on the Manage Years screen, toggle off all grades that your school doesn't need. Make sure that all of the grades at your school are toggled on.