Making Name and/or Last Name fields *not* required

@ John

Sorry, but there is no easy way to make this optional there’s underlying code that relies on it. If you want to give it a try, you need to hook into the cn_metabox_name_atts filter and change the last name to not required. I think this might work, untested:

add_filter( 'cn_metabox_name_atts', 'cn_disable_last_name_required' );

function cn_disable_last_name_required( $options ) {
    $options['individual']['meta']['name']['field']['last']['required'] = false;
    return $options;
}

Hope that helps, let me know.