How do I open selected files in the Finder in RX7?

I worked some more on this now - this script works for me in iZotope RX 7 :)

function getSelectedPathsInFinder() {
    var count = sf.appleScript.finder.selection.length;
    var result = [];
    for (var i = 0; i < count; i++) {
        result.push(decodeURIComponent(sf.appleScript.finder.selection.getItem(i).asItem.path));
    }
    return result;
}

function processLoudness(path) {
    var izotopeRx = "/Applications/iZotope RX 7 Audio Editor.app";

    function openFileInIzotope(path) {
        sf.system.exec({
            commandLine: 'open -a "' + izotopeRx + '" "' + path + '"'
        });
        sf.ui.izotope.appWaitForActive();
        sf.ui.izotope.windows.whoseTitle.isNullOrEmpty.first.elementWaitFor({ waitForNoElement: true });
    }

    function ensureModuleLoudnessIsOpen() {
        var win = sf.ui.izotope.windows.whoseTitle.is('Loudness').first;
        if (!win.exists) {
            sf.ui.izotope.menuClick({
                menuPath: ['Modules', 'Loudness...']
            });
            win.elementWaitFor({ timeout: 10000 });
        }
    }

    function selectModuleLoudnessPreset(name) {
        var btn = sf.ui.izotope.windows.whoseTitle.is('Loudness').first.groups.whoseDescription.is('EffectPanel Loudness').first.groups.whoseDescription.is('EffectPanel Loudness').first.groups.whoseDescription.is('EffectPanel Loudness Header Background').first.popupButtons.whoseTitle.is('Presets').first;
        if (btn.value.invalidate().value == name) return;
        btn.elementClick();
        sf.keyboard.press({ keys: 'enter' });
        var triedNames = {};
        while (true) {
            sf.engine.checkForCancellation();
            var thisName = btn.value.invalidate().value;
            if (thisName == name) break;
            if (triedNames[thisName]) throw 'Could not find preset: ' + name; //circled once already
            triedNames[thisName] = true;
            sf.keyboard.press({ keys: 'down' });
        }
    }
    function processOpenModuleLoudness() {
        sf.ui.izotope.windows.whoseTitle.is('Loudness').first.groups.whoseDescription.is('EffectPanel Loudness').first.groups.whoseDescription.is('EffectPanel Loudness').first.groups.whoseDescription.is('EffectPanel Loudness Footer Background').first.buttons.whoseDescription.is('Apply').first.elementClick();

        sf.wait({ intervalMs: 1000 });

        while (true) {
            sf.engine.checkForCancellation();
            var progressWin = sf.ui.izotope.windows.filter(function (win) {
                return win.groups.whoseDescription.is('Task Progress View').first.exists;
            })[0];
            if (!progressWin || !progressWin.exists)
                break;
            sf.wait({ intervalMs: 200 });
        }

        sf.wait({ intervalMs: 200 });
    }

    function processModuleLoudness(name) {
        sf.ui.izotope.invalidate();
        sf.ui.izotope.appActivateMainWindow();
        ensureModuleLoudnessIsOpen();
        selectModuleLoudnessPreset(name);
        processOpenModuleLoudness();        
    }

    function fileSave() {
        sf.ui.izotope.getMenuItem('File', 'Save').elementClick();
    }

    function fileClose() {
        sf.ui.izotope.getMenuItem('File', 'Close File').elementClick();
    }

    function main() {
        openFileInIzotope(path);
        processModuleLoudness('EBU_R128');
        fileSave();
        fileClose();
    }

    main();
}

function main() {
    var paths = getSelectedPathsInFinder();
    for (var i = 0; i < paths.length; i++) {
        var path = paths[i];
        processLoudness(path);
    }
}

main();