changing middle button scrolling action

[bittercactus]

I have an x1 carbon 4th gen. I prefer setting the middle button action as scrolling instead of middle click.

When I use my middle button to scroll, it requires a lot of pressure to maintain the scroll. With the middle click you can toggle it on and off but I prefer the scrolling setting.

Is there any to set the middle button action to scrolling, but have it so that I can toggle the scrolling on and off as if it is the middle click?

Sorry if that was confusing.