>>100539719
It's really simple to set up.
Mouse 4 R T Scroll 0 -50p
Mouse 5 R T Scroll 0 50p
Mouse 4 A C Scroll 0 -50p
Mouse 5 A C Scroll 0 50p
You might even be able to script something to set a scroll target and smoothscroll over time or something, but I haven't messed with it beyond this. It works fine for me as is.