Page 486 - ProShow Producer Manual
        P. 486
     486     17. Keyframing
        Unlike normal Volume Control Points, these points cannot be moved
        using the Timeline View.   To make changes to these points, you need to
        return to the Slide Options window for the slide that's controlling the
        Soundtrack, and adjust the timing of the keyframes.
        Keep in mind keyframes are part of the slide, not the Soundtrack.  If you
        change the timing or move a slide, the keyframes for that slide will affect
        different parts of your Soundtrack.
     	
