Leaving Notices Shortcode: [continue_link text="Continue"]
The Continue Link Text Shortcode allows you to edit the text of the URL that will displayed at the bottom of your Leaving Notices Popup.
[continue_link text="Continue to External URL"]
[continue_link text="Warning - you are about to leave our site! Click here to continue"]
Use the shortcode by placing it at the bottom of your Leaving Notice Popup as seen in this screenshot: