What is the Destination URL option on a Widget?

For each video you add to your widgets, you will see an option to add a Destination URL in the preview pane. 

If you wish to set a specific call-to-action on each video, click "Destination URL" and you will be prompted to enter the button text, button color and destination URL.

Example:

*Note: the blue dotted lines you see in the preview are visual signifiers that those fields are editable. They will not appear in the live Widget.