Sets or returns how data will be split in the bar of a bar of pie chart, or second pie of a pie of pie chart.
Setting BopPopSplitType to null
This defaults to Position when creating a new Bar of Pie or Pie of Pie series.
This property is linked for series in the same group. See SettingsPieDoughnut for more information on how linking works.
For series that are not Bar of Pie or Pie of Pie series, setting this will have no effect and it will always return Position.