How do I start a rehearsal with a pano from the Room Library?

Follow these steps:

1. To go to the Home Screen. 
2. Click on the “Choose From Room Library” button and select a room from the library.
3. Click on “Choose From Device” and select your slide deck from your phone.
4. Click the “Start Rehearsal” button to start your rehearsal 
5. Click the Cardboard icon to go into VR mode 
6. Place your phone in a phone-based VR headset