ChartGroup Object (Word)
Represents one or more series plotted in a chart with the same format.
A chart contains one or more chart groups, each chart group contains one or more Series objects, and each series contains one or more Points objects. For example, a single chart might contain both a line chart group, which contains all the series plotted with the line chart format, and a bar chart group, which contains all the series plotted with the bar chart format. The ChartGroup object is a member of the ChartGroups collection.
Use ChartGroups(Index), where index is the chart group index number, to return a single ChartGroup object.