title: Creating form with a script : Page Break and go to page issue
body: <p>Before I ask my question, I want to point out that I'm french, so I may have a bad english. If my problem is not understood, I'll try to explain it in better ways.</p>
  
  <p>I am currently working on a google script to create a form. In this form I want to ask respondent several multiple choice question.
  In order to get good and specific results, I want to adapt the questions I ask to the profile of the respondent.</p>
  
  <p>To make it clear this is the shape of my form :
  I start by asking the respondent a first question with 5 possible answer. Upon the answer, the respondent will have to be directed to a new page.
  On this new page, there is a new multiple choice question with 2 possible answers. Again, upon the answer, the respondent has to be directed to a new page and so on...
  At the end, when I get all the details I want, I ask precise questions to the respondent.
  The final page is a page containing a lot of multiple choice question, which all respondent will have to answer, no depending of their profile.</p>
  
  <p>I have tried to write it on google script this way :</p>
  
  <pre><code>var page1 = form.addPageBreakItem()
      .setTitle('First page');
  var item = form.addMultipleChoiceItem();
   item.setTitle('Question')
       .setChoices([
           item.createChoice('Yes',page2),
           item.createChoice('No',page3)
         ]);
  var page2 = form.addPageBreakItem()
      .setTitle('Second page');
  var page3 = form.addPageBreakItem()
      .setTitle('Third page');
  </code></pre>
  
  <p>But as page2 and page3 are defined after page1, the script does not understand it, and cannot jump to page3 or page2 upon the answer.
  I have tried to defined all my page first, but then I don't know how to add my multiple answer question into a specific page.</p>
  
  <p>Does anybody can give me a hint ?
  Thanks for reading anyway, and don't hesitate to ask for more explanations if it is not clear</p>