You can do exactly that. That is what is so great about release 3.80. When you have made your timing changes, press PLAY on the synch bar, yes it starts at zero, but move the scroll bar to where you want to check a change and click on the time line, the music and review skips right to there. Don't hit STOP, hit PAUSE and you can skip around forever clicking on the timeline and adjust to your heart's content. The odd time you will overload the software, no problem hit STOP and repeat above. SMOOTH>>>>>>>>>>> Jim Robertson