Use the app settings page to modify or delete charts. Doing so requires management permission for the app.

1. Display a chart of which settings you want to modify in the "View" screen.

2. Click the Change app settings icon (the down arrow) to the right of the App Settings icon, then select Open Settings of This Graph.
   

3. Modify the chart settings, and click Save at the upper left of the screen.

4. Click Update App at the upper right of the screen.

5. On the confirmation dialog, click Update App.

1. Click the App Settings icon (the gear-shaped icon at the upper right of the "View" screen).

2. Click the Graphs tab, and click Delete for the chart you want to delete.