Datasource: Open the Datasource section in the Properties panel. Select Action from here. After selecting Action, you should select which value you want to show from the Data Label For Field section under DataSource.
Legend: Select which data slice you want to close when you click on the data coming from the Data Label For Field under DataSource.
Show Data Labels: When you activate the Switch, the Show Data Labels feature allows you to choose whether to show labels (for example, the name of the data point or the data value it represents) for each slice on the chart.
Data Label Formatter: Allows you to customize the labels for the data slices in the chart.