add_filter(
   'friends_admin_settings_slugs',
    function( array $string_list ) {
        // Your code here.
        return $string_list;
    }
);

apply_filters( 'friends_admin_settings_slugs', array( 'friends-settings', 'friends-notification-manager', 'friends-wp-friendships', 'friends-import-export', 'friends-migrations' ) )