title: How to click the nth button position within parent
body: <p>I want to click a button based on its nth position within its parent</p>
  
  <p>I have tried includes(), contains(), and filter(). But I either did not do it right or it doesn't work or works only for arrays.</p>
  
  <p>I want to click the 5th button in a grid of buttons of the class "size-grid-dropdown size-grid-button"</p>