Floating Fader follows edit track mouse clicks

Yes, it's possible ( @chrscheuer I hope I have your blessing to append to your script):

var lastFocusedTrackName;

function main() {
    try {
        var newName = sf.ui.proTools.selectedTrackNames[0];
        if (newName === lastFocusedTrackName || newName === undefined) return;

        lastFocusedTrackName = newName;

        if (sf.ui.proTools.selectedTrack.outputWindowButton.value.invalidate().value !== 'open')
            sf.ui.proTools.selectedTrack.trackOutputToggleShow({ onError: 'Continue' });

    } catch (err) {}

    // Keep selected track in view and on top of screen if possible
    try {
        sf.ui.proTools.selectedTrack.trackScrollToView({ onError: 'Continue' });

        sf.ui.proTools.selectedTrack.titleButton.mouseClickElement({
            isControl: true,
            isShift: true,
            onError: 'Continue'
        });
    } catch (err) {};
}

function runForever(name, action, interval, timeout) {
    var now = (new Date).valueOf();
    if (now - globalState[name] < timeout) throw 0; //Exit if we were invoked again inside the timeout

    globalState[name] = now;
    sf.engine.runInBackground(function () {
        try {
            while (true) {
                sf.engine.checkForCancellation();
                globalState[name] = (new Date).valueOf();

                action();

                sf.wait({ intervalMs: interval, executionMode: 'Background' });
            }
        } finally {
            globalState[name] = null;
        }
    });
}

runForever("isFollowFocusedTrackRunning", main, 500, 5000);

I think you already know this but just in case, the only way to stop this script is to use SF's Stop All Running Commands, which can be triggered with ctrl+shift+esc or by clicking on the menu option on SF's popup menu on the menu bar, second page.