Scroll while selecting keyframes

Let's say I have a composition with 50+ layers and the majority of them have keyframes. If I need to select all the keyframes across a certain duration, I have to click and drag down past the bottom of the composition panel to trigger the scroll down so I can select other layers' keyframes. Sometimes this can be very laggy and I find myself rolling my eyes and waiting until it automatically scrolls all the way to the bottom.

It would be nice to also be able to use my scroll wheel to just quickly scroll all the way to the bottom while selecting keyframes. This would help by not disrupting my flow and save me time in animation.