Access Admin > System > Charting Options and open the Templates tab
Find the Template that you want to customize in the list and click on its Active Name Link.
[Save] when done with the changes.
- Enable for Dataset Reports: To use the Template with Dataset Reports, select "Yes"
- Icon: Select an Icon to display on Dataset Report chart options
- Description: Input a Description to be displayed in the Dataset Report Editor/Chart Settings
[Save] after finishing the customization.