- In an <a href="@@audio-track-controls">audio track</a>, a green line will appear in the region which is that region's <a href="@@gain-envelopes"><dfn>gain envelope</dfn></a>. <kbd class="mouse">left</kbd>-clicking anywhere in a given region between two existing <dfn>control points</dfn> will add one to the region at the X-coordinate clicked on with the Y-coordinate being on the line connecting the control points on either side of the new one. <kbd class="mouse">left</kbd>-clicking on a control point will allow it to be moved to any point in the region in between the control points that bound it on either side of itself. And finally, <kbd class="mouse">left</kbd>-clicking on a control point and pressing the <kbd>delete</kbd> key or holding down the <kbd class="mod3n"></kbd> key while <kbd class="mouse">right</kbd>-clicking on it will delete the control point.
+ In an <a href="@@audio-track-controls">audio track</a>, a green line will
+ appear in the region which is that region's <a href="@@gain-envelopes"><dfn>gain
+ envelope</dfn></a>. <kbd class="mouse">left</kbd>-clicking anywhere in
+ a given region between two existing <dfn>control points</dfn> will add
+ one to the region at the X-coordinate clicked on with the Y-coordinate
+ being on the line connecting the control points on either side of the
+ new one. <kbd class="mouse">left</kbd>-clicking on a control point will
+ allow it to be moved to any point in the region in between the control
+ points that bound it on either side of itself. And finally,
+ <kbd class="mouse">left</kbd>-clicking on a control point and pressing
+ the <kbd>delete</kbd> key or holding down the <kbd class="mod3n"></kbd>
+ key while <kbd class="mouse">right</kbd>-clicking on it will delete the
+ control point.