Wordpress - 将特色图片添加到自定义帖子类型

我正在尝试将特色图片添加到我的主题，但不是为帖子或页面添加 - 我创建了一个名为属性"的自定义类型(用于房地产经纪人)，那么我如何启用特色图片，因为它没有没有出现在屏幕选项中?

I'm trying to add a Featured Image to my theme but not for Posts or Pages - I've created a custom type called Properties (its for an estate agent), so how do I enable Featured Image, as it doesn't appear in the sceen options?

希望有人能帮忙，

$property  = new Cuztom_Post_Type( 'Property', array(
    'supports' => array('title', 'editor')
));