Apps Script Basics - if, prompt, menu, & onOpen trigger (1)

6onOpen meu

function onOpen() {
   SpreadsheetApp.getUi()
       .createMenu('New menu')
       .addItem('Example 1', 'example1')
       .addItem('Example 2', 'example2')
       .addItem('Example 3', 'example3')
       .addItem('Example 4', 'example4')
       .addItem('Example 5', 'example5')
       .addItem('Example 6', 'example6')
       .addItem('Return to Sheet1', 'example6b')
       .addItem('Example 7', 'example7')
       .addItem('Example 8', 'example8')
       .addItem('Example 9', 'example9')
       .addToUi();
 }