exit intent don′t appear

I am trying to make a pop up when new visitors got out of my site with a little form builded on formidable pro, but following your′s tut “How to create an Exit Intent Popup”, already in beginning, at the first step, the option “Exit Intent” on ther Popup Events Section, don′t exist for me.
I have to do something before that?

The page I need help with: [log in to see the link]