If i wanted to edit out one or two bars of a song i would have to cut, shuffle, drag and only then i could listen to it. What if using the selection, the pre-roll and the post-roll, i could do the same preview without doing any edit?
By toggling a button ON or OFF, i could tell pro tools that instead of playing the selection, it could jump over the selection. Lets say i have a selection between bar 48 and 50. Pre roll starts at 46 and post roll from 50 to 52. With the button ON, i would start listening at bar 46 and when the play-head gets to bar 48, it jumps straight to bar 50 and continues playing until bar 52.