Add from the scripts Library Custom Scripts > Exit Intent Lightbox to the body of the page
Add a combination of the following custom CSS Classes to the Lightbox Element
exit-intent-lightbox [required] - this classname must always be used to enable the exit intent functionality.
exit-intent-nobutton [optional] - if the lightbox button is not needed this allows to hide it from the vistors view
exit-intent-always [optional] - by default the exit intent will only open the lightbox once, when an exit intent is detected. Adding this class will open the lightbox on every exit intent attempt
Scroll spacer - this element is only a placeholder for actual content to enable scrolling on mobile devices and to demo the exit intent on those.