title: The tool "Handlers/emails" missing from YAML Forms
body: <p>I have installed the module YAML Forms in Drupal 8. According to this tutorial: <a href="https://www.youtube.com/watch?v=rMxU-d8vanc" rel="nofollow noreferrer">https://www.youtube.com/watch?v=rMxU-d8vanc</a>, there is supposed to be a tool called "Emails/handlers" there beside some more. None of these show in my installation of YAML Forms. Does anyone know why?</p>
  
  <p><a href="https://i.stack.imgur.com/HTPPe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HTPPe.png" alt="enter image description here"></a></p>