I've been reading through the CF7 documentation and am unable to find anything, other than the shortcode example, documenting the arguments I can pass to the shortcode.
Basically, I would like to pass an argument via the shortcode that will show up in the email the user submits but which will be hidden from the user.
I.e. something like:
[contact-form-7 id="123" title="my_contact_form" secret_field="This will show up in the email but not to the user."]
Is this possible?
Thanks for your help and work on supporting this great plugin!