You can click on a part of a visual and see the matching rows of data, in detail.
Use this feature to ensure that the Detail Data selector appears in the context menu. In Edit mode, navigate to the Marks menu, and select the Show detail data button in context menu option. It is on by default.
If this option is selected, notice that the Show Detailed Data option appears in the context menu.
To see how this option works, see Detailed Data Discovery.
To hide detail data, de-select the Show detail data button in context menu option.