Add the OceanWP Settings Metabox in your Custom Post Type

/**
 * Add the OceanWP Settings metabox in your CPT
 */
function oceanwp_metabox( $types ) {

	// Your custom post type
	$types[] = 'your-post-type';

	// Return
	return $types;

}
add_filter( 'ocean_main_metaboxes_post_types', 'oceanwp_metabox', 20 );

All PHP snippets should be added via a child theme's functions.php file.