<p>Allows direct modification of the Entity structure.</p>

<p>Callback signature:</p>
<blockquote><code><em>\XF\Mvc\Entity\Manager</em> $em, <em>\XF\Mvc\Entity\Structure</em> &amp;$structure</code></blockquote>

<p>Arguments:</p>
<ol>
	<li><code><em>\XF\Mvc\Entity\Manager</em> $em</code> - Entity Manager object.</li>
	<li><code><em>\XF\Mvc\Entity\Structure</em> &amp;$structure</code> - Entity Structure object.</li>
</ol>

<p><b>Event hint:</b> Fully qualified name of the root class that was called.</p>