modxcms/revolution — pull request #477 by rtripault (2013-04-03 12:00:38+00:00)
Title: Proposal for issue 9607 (http://tracker.modx.com/issues/9607)

You should be able to hook multiple plugins on `OnBeforeConfigSet` event and either output a key or an array of keys to be unset :

```php
$modx->event->_output = array('access_resource_group_enabled', 'access_category_enabled');
return true;
```
or

```php
$modx->event->output('access_resource_group_enabled');
return true;
```