HasAutoChartDepth Property
False if the depth of the specified chart has been modified. Set this property to True to restore the specified chart to its default depth. Read-write Boolean.
expression.HasAutoChartDepth
expression Required. An expression that returns a ChChart object.
Example
This example resets the first chart in Chartspace1 to it's default depth.
Chartspace1.Charts(0).HasAutoChartDepth = True