In multi touch app, there's an action such as adjust with 2 finger swipe from left edge which works in both increasing and decreasing volume
BTT currently doesn't provide a way to use the moved distance in triggers, however you can do it like this, using the repeat option:
Can I simulate middle click app function like three finger tap to middle click on tab button and link only? @Andreas_Hegenberg
that depends on the app, maybe you can get it to work with advanced trigger conditions by checking the hovered element details