To create a Pie chart
Ensure you are on a dashboard (not created from a template).
Click on the menu located in the top-right corner of the screen.
Select 'Add Visualization' -> 'Create new gadget.'
In the 'Create new gadget' window, select 'Pie' as the gadget type.
Enter a name for the Pie chart gadget.
To display an existing metric, click on 'Add Metric' and choose from the list of pre-defined metrics.
Alternatively, you can create a new metric specifically for this gadget by clicking on 'Create Single-use Metric.'
Select the dimension for which you want to view the slices of the pie chart.
In the example below, we have used 'Driver Type' as the dimension.
Set the default date range for your Pie chart using the date picker.
If you wish to set up a report to drill down to from this gadget, select a report from the dropdown located in the top-right corner.
Once you've configured the default date scope, run time filters & scope filters, click 'Save'.
The Pie chart gadget will be added to the bottom of your dashboard. Scroll down if needed to re-position and resize the gadget as required.