title: Two entry boxes on one zenity command
body: <p>Using zenity i can create an combo box like this</p>
  
  <pre><code>zenity --entry --title "Window title" --text "Insert your choice." a b c d e
  </code></pre>
  
  <p>How can i create two combo boxes in one dialog, i tried using the separator command like this</p>
  
  <pre><code>zenity --entry --title "Select Flash Drives" --text "Insert your choice." --separator="," --add-entry="IP address" --add-entry="PORT"
  </code></pre>
  
  <p>But it says</p>
  
  <pre><code>--separator is not supported for this dialog
  </code></pre>
  
  <p>Is it possible to create two combo boxes in one zenity dialog</p>