This is already possible in S1. Select the tracks you want this repitch behavior be applied to on stretching/squeezing the audio. Open inspector, Set tempo to 'timestretch', timestretch to 'tape' and then squeeze or stretch the audio to see this behavior in action.
Or alternatively you can set tempo to 'timestretch', timestretch to 'tape' and then instead of stretching/squeezing individual events on tracks, you could change the song tempo and have the same effect.