title: google Visualization Organizational Chart collapse to second row
body: <p>By using google Visualization Organizational Chart I have built my Organization chart, basically it is a big chart so I am trying to collapse the sub roots until the second row. </p>
  
  <p>I have gone through the API and I found the <strong>collapse(row, collapsed)</strong> here it is asking for the row id by my row id's are improper, so this my issue.</p>
  
  <p>How can I achieve this?</p>