Hi Barry, so although there does not seem to be a loadNodeFile() function, you can give the node editor a parameter named 'file' in the URL's search string to tell it which file to load when it starts.

Like this:

function openNodeFile() {
    try {
        // Open the file selection dialog
        filePath = moi.filesystem.getOpenFileName('Open', 'MoI Nodeeditor files (*.nod)|*.nod');
        if (!filePath) {
            moi.ui.alert('No file selected.');
            return; // Exit if no file is selected
        }

        // Alert the selected file path
        moi.ui.alert('File selected: ' + filePath);

	// Put parameter file=path.nod in the URL's search string to have it load the file.
	var url = 'moi://appdata/nodeeditor/index.html?scheme=Light&file=' + filePath;

        // Open the Nodeditor dialog with the correct path
        moi.ui.createDialog(encodeURI(url), 'resizeable,defaultWidth:680,defaultHeight:420', moi.ui.mainWindow);

    } catch (error) {
        moi.ui.alert('Error: ' + error.message);
    }
}

// Run the openNodeFile function
openNodeFile();