title: Is it possible to add a message bar/ toolbar at the bottom of a titleareadialog?
body: <p>With my <code>TitleAreaDialog</code> is it possible to add a area or a bar across the bottom, below the buttons.  That a message can be displayed to the users, when a operation is taking place.</p>
  
  <p>Here is a example of what I am referring to</p>
  
  <p><img src="https://i.stack.imgur.com/wX6ZY.png" alt="enter image description here"></p>