Editing Curve Points
Many of the editing operations that are commonly used in the context of your computer operating system can be applied when editing curve points. On top of these, a number of specific procedures apply.
To add a curve point, double-click the envelope curve.
To delete a curve point, double-click the curve point. The curve point between the sustain and fade parts of the envelope cannot be deleted.
To delete multiple curve points, select the curve points that you want to delete, right-click one of the points, and select Delete Selected Points.
To select a range of points, Alt-click and drag to create a selection rectangle.
To move all selected points, click one of the selected points and drag.
To raise or lower the value of two consecutive curve points, Ctrl/Cmd-click the segment between the points and drag up or down.
To change the time position of two consecutive curve points, Shift-click the segment between the points and drag left or right.
To raise or lower the entire envelope curve, make sure that no curve point is selected, click the envelope curve, and drag up or down. Do not drag a segment that is limited by selected points.
To adjust the envelopes in all selected clips, hold down Alt, and drag any envelope curve up or down. This is a quick way to adjust the level or pan of multiple clips at the same time and also to adjust both sides of a stereo envelope simultaneously.
To move a fade in/fade out point vertically, Ctrl/Cmd-click and drag the fade point.
To change the level or the fade in/out time of multiple envelopes at the same time, select the clips that you want to edit, press Alt, and edit the envelope with the mouse.