Check out the given walk-through on how to insert Title and Sub-title on the Designer charts.
The user can provide description for Title and Sub-title using the Title and Sub-Title properties fields.
Default Title Properties:
Modified Title Properties:
Default Sub-title Properties:
Modified Sub-title Properties:
The below-given image displays data preview of a specific data with modified Title and Sub-title properties:
This properties option helps to get a Title for the selected component based on the selected dataset fields. The selected component must be mapped with a dataset.
Open the Title Properties section for a dragged chart component.
Enable the Show Dataset Description option.
It will reflect the Title description based on the selected category and series fields for that charting component ignoring the inserted Title description for that chart.