title: In StringGrid, goEditing prevents the MouseDown event from firing
body: <p>In a string grid I turned on goEditing so that the user doesn't have to click to get into the editor.</p>
  
  <p>Now when they right click then get the pop-up below, rather than my MouseDown event being called.  </p>
  
  <p>Is there a way to turn off this behavior?</p>
  
  <p><img src="https://i.stack.imgur.com/TtqZA.jpg" alt="alt text"></p>