So I just got a new mouse with a horizontal scroll wheel on the side(mx master 3 if that helps in any way) and I was trying to see if I could hook up the horizontal scroll wheel to scroll horizontally in the timeline. I looked for anything in the keybinding menu that had any mouse buttons or inputs but couldn't find anything. I was just wondering if I was just stupid or if there is no function in Vegas Pro 18 to add and or change mouse inputs for either the horizontal or vertical scroll in the timeline. Any help would be great!