Customer's question:

Can you please provide more information about how to create my own Gallery Grid Modal? There is one example page in my purchased WordPress theme - Kindergarten but I am not able to figure out how the gallery works.

Solution:

Please take a look at the list of shortcodes under "IMAGE GALLERY" heading. Such a section is available on each demo site of WordPress themes and gives the information about gallery shortcode parameters available to use on your website.

This is an example of how to use the code: