2. In the graphics area or in the Structure Tree, select an entity to measure. The measurements are calculated and appear in the graphics area and in the Results panel of the Measurement Summary dialog box.

3. To add another entity to the measurement, in the Measurement Summary dialog box, press CTRL+Select the reference. The measurements of the second reference appear in the Results panel of the dialog box. The sums of the measurements appear in the Results panel and in the graphics area.