BI Drilldown Chart Configuration Window
The BI Drilldown Chart Configuration Window is comprised of three tabs:
BI Drilldown Chart Configuration Window - Mapping Tab
Within the BI Drilldown Chart Configuration window's Mapping Tab, you can drag fields, once populated, between groups.
BI Drilldown Chart Configuration Window - Dimensions Tab
The BI Drilldown Chart Configuration window's Dimensions Tab will provide a list of loaded Dimensions once populated.
BI Drilldown Chart Configuration Window - Properties Tab
The BI Drilldown Chart Configuration window's Properties Tab allows you to make additional edits to your selected Drilldown Variable, including:
GENERAL
Enable Drilldown -Enable/Disable drilldown feature of chart.
DrilldownVariable -Specifies Drilldown variable. You can enter a different drilldown variable in the text entry field or click on the 
button to open the Data Browser and navigate to your specific drilldown variable.
ShowMapping -Show/Hide Drilldown dimension mapping option.
ShowWarnings -Show/Hide warning pane in runtime even if there are some warnings.
ExpandDrilldownPane -Expand/Collapse Drilldown configuration pane.
ShowDrilldownPane -Show/Hide Drilldown configuration pane.
APPEARANCE
FontFamily -Specifies FontFamily. Use the pulldown menu to select your preferred font.
BreadcrumbBarEditMode -Specifies whether the BreadcrumbBar is editable. Use the pulldown menu to select from Hidden, Visible, or Readonly.
Background -Enter a color code in the text entry field or click on the 
button to open the Brush Picker window and select your background as either a Solid Color, Gradient, Image, or Global Color.
Foreground -Enter a color code in the text entry field or click on the button to open the Brush Picker window and select your foreground as either a Solid Color, Gradient, Image, or Global Color.
Click on the Close button to return to save your settings and return to the previous configuration.