How to change the number of app screens
The Apple App Store allow you to have a maximum of 10 screenshots per device and Google Play allow you to have a maximum of 8. The default limit of app screens within your project is always set to 10 (5 if you are on a free plan).
To change this:
Go to your project setup
Click on the Advanced section
Update the screenshot limit up to a maximum of 25 (scale plan)