List of sections. The available sections depend on the selected chart type, e.g., X axis, Y axis, filters, etc. You can drag and drop fields in a section.
Preview area where the visualization is displayed. You can select multiple elements to view in graphs and charts by holding the Ctrl key.
Chart legend. The legend maps the chart colors to the field values in the Colors section. By clicking individual legend elements, you can change the data display in the chart. You can select multiple legend elements by pressing and holding Ctrl/Cmd. You can enable and disable the legend in the chart settings.