This tool is useful for testing the mobile interfaces of Salesforce and Posi Ed on a PC.
Android Studio - https://developer.android.com/studio?gclid=CjwKCAjw04yjBhApEiwAJcvNoTr1dutzPZ6fdQL2_2uOC3y6JyE4pqO_3QXdQ1pvqzyAXHsp4VpxEBoC8x4QAvD_BwE&gclsrc=aw.ds
Salesforce Mobile App Emulator - https://developer.salesforce.com/tools/mobile-debugging . Install and setup instructions are here: https://www.youtube.com/watch?v=fo0wyyutKkw