You can use Axis 2 to display additional data using a different chart style.
For example, you can display:
A bar chart and a line chart
Two different line charts
Two different bar charts
Add data to Axis 1
Create or edit a chart widget.
Select the chart type.
Select the required dataset.
In Axis 1, add the data you want to display.
The selected chart type applies to Axis 1 by default.
Add data to Axis 2
Select Axis 2.
Add the data you want to display on the second axis.
Expand Default Axis 2 settings.
Select the chart style for Axis 2.
Available chart styles depend on the selected graph type. The chart updates automatically.
Why use Axis 2?
Axis 2 is useful when comparing different data series in the same chart.
For example:
Income and expenses
Actual and forecast data
Revenue and profit
You can experiment with different chart styles to find the most effective visualisation.