Configuring a Series
You can select Series in the Chart Axis column for any Data Source Columns. The data source column should have Axis dimension assigned to it.
You can display a series only on chart view, which means the pivot grid can only have a display of Chart or Pivot Grid and Chart.
In the Pivot Grid Viewer you can see the model with months as series.
You can also drill down using the X axis. Right click and select Drilldown Intersection To. The option enables you to drill down to a datapoint in X axis, in this example you can drill down to product information for the selected month.