Could not click open close folder Line 3 error

Hey Michael!

I'm pretty sure you're getting this error because the track height of the folder track is either mini or micro. At those small track heights, the script you were using isn't able to find the open/close button, therefore failing. Below is an alternative:

// Enter track name here:
const trackName = "•Braams•";

/**@param {AxPtTrackHeader} track */
function toggleFolderThroughPopupMenu(track) {
    // Make sure we're on the Edit window.
    if (!sf.ui.proTools.getMenuItem("Window", "Edit").isMenuChecked) {
        sf.ui.proTools.menuClick({
            menuPath: ["Window", "Edit"],
        })
    };

    // Scroll to track
    track.trackScrollToView();

    // Open/Close folder
    track.popupButtons.whoseTitle.is("Track options").first.popupMenuSelect({
        menuSelector: m => m[m.length - 1],
    })
};

function main() {
    sf.ui.proTools.appActivateMainWindow();

    const track = sf.ui.proTools.invalidate().trackGetByName({ name: trackName }).track;

    try { // ... to open with the preferred method
        track.folderTrackSetOpen({
            targetValue: 'Toggle',
        });
    } catch (e) { // If it fails, try the popup menu method
        toggleFolderThroughPopupMenu(track);
    };
};

main();

This script will first try to do it the way you had it. If that doesn't work, it will try to do it another way (through the popup menus of that track).

I personally prefer the original way since that method can open/close the folder from anywhere in the session, even in the Mix window (as long as the Edit window is also open). It feels more like a built-in feature. The second method needs to see the track on screen before it can open/close the folder, so you'll see it do a few things before actually getting to the folder.

So I guess my suggestion would be to keep the folder height at "small" or larger.

Hope that helps!

This works great! Thanks so much!