public function setSiteTargetCTA(CNabuSiteTargetCTA $nb_site_target_cta, $field = NABU_SITE_TARGET_CTA_FIELD_ID)
    {
        $this->nb_site_target_cta = $nb_site_target_cta;
        if ($this instanceof CNabuDataObject) {
            $this->transferValue($nb_site_target_cta, NABU_SITE_TARGET_CTA_FIELD_ID, $field);
        }

        return $this;
    }