title: UltraWinGrid Column Within a Column
body: <p>I am using a <code>UltraWinGrid</code> and would like to have two columns under one heading. I should also note that I am doing this by adding the columns at runtime.</p>
  
  <p>I cannot find anywhere in the documentation that describes what I am trying to achieve. Any help would be appreciated. </p>
  
  <p>The result:</p>
  
  <pre><code>|            |     Header 1    |     Header 2    |
  --------------------------------------------------
  |Row 1       | Item 1 | Item 2 | Item 1 | Item 2 |
  |Row 2       | Item 1 | Item 2 | Item 1 | Item 2 |
  |Row 3       | Item 1 | Item 2 | Item 1 | Item 2 |
  </code></pre>