Yes you could scroll tracks up/down with the mouse. The ACW could just show one track at a time and scroll track by track up/down then in the Audio Edit window or floating Audio Edit window it could show more tracks as well as vertical scroll and vertical zoom.
It's showing the track name in the waveform, this will also show where there is an instrument change.
I don't want to give them a heart attack, this might be a bit of a shock also ?

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