How do I change how the existing readings are grouped?

1. Access the Settings page.
   
2. Scroll down to the "Historical View" section.
   
3. Tap the "Group By" drop down list.
   
   
   
4. Tap the row with grouping you would prefer
   
   
   
   Updated grouping:
   
   
   

If you don't see the grouping you would like, please contact us and we will try to add it in a future update.