For us to assist you further, would you please elaborate more on the query? Are you referring to the Summer School Setup or any other setup?
If you are a staff, we recommend working with the Technical Contacts within your school district who should be able to assist you further with more information in setting up a school and with other details.
For Demo information you might try going to https://www.powerschool.com/request-demo/
You will find contact info for the sales team on this page as well.