5 Click and drag the right mouse button upwards to move the curve upwards.
Click and drag away from the selected curve to avoid picking the original
curve.
Move the curve so it is aligned with the top of the wavy edge of the
joystick base sketch.
6 With the curve still selected, click the CV/Hull check box in the Control
Panel Display section to turn the CVs and Hulls on.
The CVs and hulls appear.
Part 2: Creating the Joystick Base | 185