No, with Studio tools it's impossible to do. It needs to change the code of the modules/boonex/persons/classes/BxPersonsPageEntry.php. In the parent file (modules\base\profile\classes\BxBaseModProfilePageEntry.php) you may see the code which is the responsible for this part:

// add replaceable markers

        $this->addMarkers($this->_aProfileInfo); // every content field can be used as marker

        $this->addMarkers(array('profile_id' => $this->_oProfile->id())); // profile id field

        $this->addMarkers(array('display_name' => $this->_oProfile->getDisplayName())); // profile display name

        $this->addMarkers(array('profile_link' => $this->_oProfile->getUrl())); // profile link