title: Extracting Requirements folder Tree structure from QC using API
body: <p>I am trying to extract requirements from QC Requirement module. i could extract all requirements of a QC project but i would like to extract selected requirements only. So i need to give folder path and extract requirements accordingly.
  Currently i use ReqFactory to extract Reqs from QC. Could you please help me or give me idea to extract requirmeents from selected folder path.</p>
  
  <p>I tried Req Path and father id, but still it does not fulfill my need as some may have multiple sub folders under parent folders.</p>