title: Omnet++ compound module: connect 1 input gate to multiple submodules
body: <p>I have made a simple compound module with 1 input and two submodules:</p>
  <pre><code>module System
  {
      parameters:
      gates:
          input sensorDataIn;
      submodules:
          metric1: Metric1 {
              @display(&quot;p=30,26&quot;);
          }
          metric2: Metric2 {
              @display(&quot;p=30,26&quot;);
          }
  
      connections:
          sensorDataIn --&gt; metric1.metricIn;
          sensorDataIn --&gt; metric2.metricIn;
  }
  </code></pre>
  <p>When I start the simulation I get an error that the gate is already connected. So how can I get the data that comes into my compound module to both submodules?</p>
  <p>Thanks and kind regards,</p>
  <p>tanktoo</p>