[Plugin: Contact Form 7 Modules] Hidden fields not displayed

I installed this on a site to be able to add the sending URL and title of the page the form came from to the email. Both plugins are activated but the only option in the generate tag menu is the all fields option. There is no hidden fields option.

How do I fix this?

http://ww.wp.xz.cn/extend/plugins/contact-form-7-modules/