title: How to add custom property (with inserted controls) in QtTreePropertyBrowser
body: <p>I would like to add custom property with inserted controls in QtTreePorpertyBrowser
  Here is a sample snapshot for my requirement:</p>
  <p><a href="https://i.stack.imgur.com/gGhpw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gGhpw.png" alt="enter image description here" /></a></p>