The School settings page can be found under Settings on your dashboard.
1) Click Settings at the top
2) Click on CHANGE in the school details box
3) At the top of the page under Statistics, you will be able to view a summary of the number of students, classes, and teachers currently part of the school (the number will not include students in the Removed folder)
You will be able to change the settings listed under Main settings and Login settings
4) To change any of the settings click on Change next to the section you would like to edit