[Feature Request] Add an option to separate mouse scrolled vs mouse trackpad scrolled events

[aspauldingcode]

scroll with trackpad inverted compared to mouse wheel on my macbook.

The reason why is likely that I use a program called unatural scroll wheels which inverts my scroll direction for the mouse wheel. This is useful because in macOS, inverting your scroll direction using the settings natural scroll toggle, actually forces you to invert both the trackpad AND the scroll wheel, which is unacceptable. Scrolling up increases volume in my config, scrolling down decreases it.

If this is already implemented: how can we separate these events?