plz add to FAQ: (how to CPT)

Q: How to use this plugin for my Custom Post Types?
A: Put this in your functions.php

// add gallery metabox to correct post types
add_filter('fg_post_types', 'func_return_project' );
function func_return_project() {
	return array('post', 'page', 'project');
}

https://www.ads-software.com/plugins/featured-galleries/