I think Data Zoom is a great feature already but you can only apply it to all tracks. It would be great to have this feature per track.
Because when sometimes I want to data zoom my vocals but don't want to data zoom my FX, as the FX is already loud, they look like they are clipping when zoomed.
I know the real intent for this feature is not the have it zoomed up all the time, but to data zoom, edit easily, then turn the data zoom off. But still, if we can make it per track basis, it would be a good tool to achieve visual consistency on how audio waveforms look throughout the song.