I know this feature from Microsoft Excel. Yeah, right, nothing one can compare to a DAW. But, listen:
I think what engineers and editors (especially in the post world) really need is the possibility to pin a track to the top of the edit window (end even the mix window), so one can scroll vertically anywhere but certain tracks (tracks for rerecording, a guide track when editing foley or adr or similar) is visible at any time. That would be so useful. Really.