Setting up Interval bells is simple. Simply:
1. Navigate to the Timer tab (middle icon) at the bottom of the screen.
2. Click on Interval Bells.
3. Select the 3 dots.
4. Click the switch to Random.
5. Choose your type of bell, number of bells, and number of strikes.
6. Save, meditate away.
Random bells cannot be selected when the session Duration is set to 'No limit'.