Kentico tags with a custom page type
<p>I'm reading through the documentation (<a href="https://docs.kentico.com/k9/managing-website-content/configuring-the-environment-for-content-editors/configuring-tags/allowing-users-to-tag-pages-on-the-form-tab" rel="nofollow noreferrer">https://docs.kentico.com/k9/managing-website-content/configuring-the-environment-for-content-editors/configuring-tags/allowing-users-to-tag-pages-on-the-form-tab</a>) and thought all was good, but when i go to create a new page based on the pate type, my Tag field is greyd out.</p>

<p>At the bottom of documentation page, is states:</p>

<blockquote>
  <p>If you need to create a custom page type with a tag selector, the tag selector must be bound to a system field</p>
</blockquote>

<p>I don't know what this means? I've created a tag group (Global), but I'm stuck.</p>