title: Talend - How to create tXMLMap nested loops
body: <p>I have the below flow, and I would like the userGroup to be a loop as well according to data that's coming from another database lookup, Can you point me to the best way to approach this?</p>
  
  <p><img src="https://i.stack.imgur.com/yfFs2.png" alt="tXMLMap">
  <img src="https://i.stack.imgur.com/D2Eca.png" alt="MyFlow"></p>
  
  <p>Your help is appreciated.</p>