Press the left mouse button after positioning the cursor at the location for one corner of the rubber box. SURFCAM anchors one corner of the box.
Drag the mouse to a point diagonally opposite the first point until all elements to process are at least partially within, or touching, the rubber box. The box stretches in the direction you move the mouse.
Press the left mouse button. SURFCAM will select all elements that are partially or totally enclosed with the box and execute the command.