Custom item dropdown

add_filter('jnews_dropdown_link', function ($dropdown) {
    if ( is_user_logged_in() )
    {
        $item = [];
        $item['custom'] = array(
            'text' => 'Custom',
            'url'  => esc_url( jnews_home_url_multilang( '/your-custom-link' ) )
        );
        $dropdown = array_merge( $item, $dropdown );
    }

    return $dropdown;
});