Video preview:

Let's build this template together:

1. Create a new template.
2. Add a Interface Editor component.
   
3. Double-click to edit it.
   
4. Add a WebFrame by clicking the button at the toolbar.
5. Resize your WebFrame as desired, at the "Position" tab.
   
6. Paste the desired URL, in the "Layer" tab.
   
    
7. A preview of the URL will be shown for your reference.
   
8. Optionally, you may add a Media Gallery together, as I did, for demonstration purposes.
   
9. Playback your template!

Great job!

Below, you may download the template .ar file to take a closer look at the finished example.