You can enable drill down of a chart from Format settings of the chart area.
When drilldown is disabled (default), the axis fields are displayed hierarchically as shown in the image below.
Drilldown is an interactive feature that allows you to look into the aggregation level of your data from high level aggregation to detailed aggregation for an in-depth view. For example, you can drill down into the aggregated data for each shipping city such as Frankfurt and Cunewalde and display the data for each country such as Germany and Sweden.
You can restore the drilled down data through breadcrumbs at the top left of the chart or by selecting Drill Up from the context menu of the chart category.
You can enable drill down of a chart from Format settings of the chart area.
When drilldown is disabled (default), the axis fields are displayed hierarchically as shown in the image below.