SeoTab add properties

<?php
$stercseo = $modx->getService('stercseo', 'StercSEO', $modx->getOption('stercseo.core_path', null, $modx->getOption('core_path').'components/stercseo/').'model/stercseo/', array());

if (!($stercseo instanceof StercSEO)) {
    return;
}
$resources = $modx->getCollection("modResource");
foreach ($resources as $k => $resource) {
    $properties = $resource->getProperties('stercseo');
     if (!empty($properties)) {
            $newProperties = [
                'index' => $properties['index'],
                'follow' => $properties['follow'],
                'sitemap' => $properties['sitemap'],
                'priority' => $properties['priority'],
                'changefreq' => $properties['changefreq']
            ];
        } else {
            $newProperties = [
                'index' => $stercseo->getOption('stercseo.index', null, '1'),
                'follow' => $stercseo->getOption('stercseo.follow', null, '1'),
                'sitemap' => $stercseo->getOption('stercseo.sitemap', null, '1'),
                'priority' => $stercseo->getOption('stercseo.priority', null, '0.5'),
                'changefreq' => $stercseo->getOption('stercseo.changefreq', null, 'weekly')
            );
        }
        
        $resource->setProperties($newProperties, 'stercseo');
        $resource->save();
}