You can only support one school under your account, but you can change your designated school at any time in the app!
In your Profile tab, simply select Change School to between schools!
The Roo Points & Sweepstakes Entries you've already earned are awarded to the school you're leaving and any future Roo Points or Sweepstakes Entries earned will be awarded to your newly selected school. If you have two kids at different schools for example, you can change schools on the fly to support both equally!
If your child recently changed schools, and the school is not found in the app, feel free to add the school to the waitlist.