title: How to show a popup menu above the clicked button?
body: <p>Is there a way to show a popup menu, using the provided <code>showMenu(...)</code> API, above the clicked button?</p>
  <p>Basically the opposite of the following image (here the menu is below and not above the red button):</p>
  <p><a href="https://i.stack.imgur.com/hU9cum.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hU9cum.png" alt=" " /></a></p>