Check out how to add the slide out or exit pop up form to Folios. See video below.
Add a Slide out or Pop Up To a StickyFolio/Album
Login to the StickyFolios/StickyAlbums builder.
Select edit next to the Folio you would like to add your code o. You can embed one Slide Out and one Pop Up in any Folio.
Click on the StickyEmail Section Under Settings (left side of the builder).
Select the Embed code from the drop down menu.