When you need to customize parameters for the school fields you can navigate to the settings on the menu bar and find the school on top.
Menu Bar >> Settings >> School
Under school, you will find options shown above and talked about in the intro solution
We are now working on Sections.
Here you can create sections for the grade levels of your school.
Click on '+Add New Section' to get started.
By clicking on '+Add New Section' you will get a pop-up setup where you will need to add the tile of the section and sort order then submit to save.
You can repeat the same step to create more sections using the same method that you have in your school.