title: Is there any dynamic image technology like a gif to demonstrate new feature in cocoa application?
body: <p>I add some new feature in my app. And I want to introduce it to the users as they use the feature for the first time.</p>
  
  <p>Maybe it needs some complex operations like clicking this button and then clicking that menu item.</p>
  
  <p>So I wonder if there is something or tech acting like a gif to demonstrate the process of the new feature or something like that?</p>
  
  <p>Thank you for your help.</p>