{image-overlay image="small-image.jpg" link="large-image.jpg" data="data-lightbox='on'"}
{image-overlay image="small-image.jpg" link="http://youtu.be/HjcPOZ_z3Ts" data="data-lightbox='on'"}
{image-overlay image="small-image.jpg" link="http://vimeo.com/94502406" data="data-lightbox='on'"}
{image-overlay image="small-image.jpg" link="http://www.wikipedia.com" data="data-lightbox='on' data-lightbox-type='iframe'"}
Please note: if you want to group the Images to a Gallery, simply insert to the data this Value:
data-lightbox-gallery='name-of-it'
For title, simply insert in Shortcode
title="name-of-it"