In the piano roll (and other windows), I miss the ability to immediately stop scrolling the content. Example in the piano roll: I flick the scroll wheel on my mouse (e.g., MX Master), the notes appear in the visible section of the window, but I have no way to instantly stop the scrolling by halting the mouse wheel. The initiated scroll action has to gradually lose its momentum and ends up stopping at a random position. Please take a look at how this works in Logic Pro X; the scrolling there is a dream. Scrolling through long lists and stopping exactly at the desired position is so easy.