You can make selections in a table by clicking or drawing in the dimension columns. Measure values cannot be selected. When you make a selection, it is always the dimension values that you select. You can only make selections in one column at a time.
To deselect a row, click it. To confirm a selection, click m or click outside the visualization. You can also press Enter. To cancel, click E or press Esc. If you confirm, the selection is reflected in all visualizations associated with the table.
You cannot select dimension values that are null. Null values in a table are presented as dashes (-). Rows without valid dimension values will not be included in the selection.