You can delete unwanted features from the map. This can be useful when you want to remove some clutter by deleting features that won't be of interest in the map visualization.
Keys. Select the map key containing the feature labels that will help you identify the features you want to delete.
Features. Click the feature that you want to delete. If you want to delete multiple features simultaneously, Ctrl-click the additional features. (On macOS, use Command-click.) Note that the features will also be selected in the map preview. You can click and Ctrl-click (Command-click on macOS) the features directly in the map preview in addition to selecting them from the list.