To change a playback loop, simply drag the loop markers in the graphic editing view’s time line. Dragging the loop source start marker will move both the source start and the source end marker, thereby preserving the length of the source material. Dragging the loop source end marker will shorten or extend the loop source area without affecting the loop source start point. Dragging the loop extent marker will change the number of repeats in the loop. If the loop extent marker is dragged so it lines up with the section end double-lines in the graphic editing view, then the loop will automatically resize when the section size changes (it will always loop until the end of the section). Loop Override markers cannot be dragged -- they can only be selected and deleted.
An alternate way to change the settings of a playback loop is to double-click on a loop marker. This will bring up the playback loop Detail dialog where you can easily set the loop start bar, end bar, and number of repeats.
