The series must be defined in the next step of the chart wizard. For this a series is added first of all. This occurs with the chart symbol (45). From the selection bar of the chart type select Pie. Thus the series is added. The name of the series can be changed in the box Series Name (46).

In further consequence the data columns must be defined. On one side the Argument Data Column, on the other side the Value Data Column.

In this example the series is renamed to Area. The attribute ARTLANG is selected as argument data column from the GIS data source GST_TEILFLÄCHEN (joined table). The value data column contains the attribute SURFACE from the same data source.