Quick vertical zooming - make it the same as horizontal zooming

I like the horizontal zooming a lot - just grab one of the bar's ends and you can zoom in and out very quick.

So what I'm asking myself - why isn't vertical zooming just working the same? I had to zoom into a track to find a noise and zoom out to get more tracks into view. This would be so much easier (and much faster) if it'd be working the same as the horizontal zoom-bar.

Come on - that's an easy one, isn't it?