title: Capture the name of the selected UI menu option
body: <p>I'm trying to add entries to the menu of a Google Sheet:</p>
  
  <pre><code>  ui.createMenu('Push to Sheet')
      .addItem('Texas', 'menuItem')
      .addItem('Illinois', 'menuItem')
      .addToUi();
  </code></pre>
  
  <p>In the callback function <code>menuItem</code>, is there any way to capture the name of the selected option (i.e. 'Texas' or 'Illinois')? If possible, this would serve as a marker to replace the inability to send parameters using the UI service.</p>