title: Subscribe to multiple OPC-UA nodes at once
body: <p>I need to subscribe to ~1000 nodes, which were created in a hierarchy, like:</p>
  <blockquote>
  <p>ns=2;s=0:Manufacturing.E01.Ambient.Temperature</p>
  <p>ns=2;s=0:Manufacturing.E01.Ambient.WindDir</p>
  <p>ns=2;s=0:Manufacturing.E01.Commands.AckAllErrors</p>
  <p>ns=2;s=0:Manufacturing.E03.Ambient.Temperature</p>
  <p>ns=2;s=0:Manufacturing.E03.Ambient.WindDir</p>
  <p>ns=2;s=0:Manufacturing.E03.Ambient.WindSpeed</p>
  </blockquote>
  <p>I am treating every update the same way, thus calling <code>subscription.monitor()</code> function for each of them and creating a new callback function does not seem to be the optimal way to me.</p>
  <p>Is it possible to subscribe to multiple nodes with a pattern, e.g all nodes that fall under:</p>
  <blockquote>
  <p>ns=2;s=0:Manufacturing.E01.</p>
  </blockquote>