<?php
// Convert Summon formats to RefWorks formats:
$formats = $this->driver->getFormats();
foreach ($formats as $i => $format) {
    $formats[$i] = $this->summon()->getRefWorksFormat($format);
}

// Use the default template, but override the formats:
$this->slot('refworks-formats')->set($formats);
echo $this->render('RecordDriver/AbstractBase/export-refworks.phtml');