How to control faders or other plugin parameters via simulated mouse scroll events

As a quick example, this script will simulate a scroll event on the "Input" knob in the first open EQ3 insert window:

var win = sf.ui.proTools.windows.whoseTitle.startsWith("Plug-in: EQ").first;
if (!win.exists) throw 'Could not find window';
var winPos = win.position;
var pos = { x: winPos.x + 110, y: winPos.y + 150 };

var oldPos = sf.mouse.setPosition({
    position: pos,

}).oldPosition;
sf.mouse.scroll({
    delta: 1,
    unit: 'Line',
});
sf.mouse.setPosition({ position: oldPos });

You can assign a MIDI trigger directly to a script like this, or combine the script with MIDI filtering to be even more advanced.