This is our recommended plugin to add lightbox functionality to your website.
A lightbox is when you can enlarge a picture from a gallery (or a video) without changing page.
This plugin is responsive, fast and touch ready, we use it since long time and is the best you can use with this theme.
To open pictures in a lightbox, within a gallery, be sure to use “Media file” link as gallery option
More info and manual
You will be offered to install it in bundle within the automatic installer of the theme.
Please contact the developer to receive support about this plugin: