< Layering modulation

When you assign a curve to a parameter, you can choose a depth mod by right-clicking the green icon beside the control. Choose Curve 2 and a purple ring appears in the green one. You can use this to control the modulation that the first curve is applying. If you set the Rate quite slow on Curve 2, you can see that the modulation from Curve 1 is only applied partially when Curve 2 is all the way down. As it comes up, modulation will reduce. To adjust the modulation amount of Curve 1, hold down shift and drag the slider up/down.