Fields added to form when add-on enabled


I am working improvements to my Gravity Forms Google reCaptcha plugin (

I am hoping it is possible to force a field to be added to a form when the add-on is enabled. I do not want it to show up in the editor, but be able to catch data from the client side and hold in the form.

The point of this is to pass the Google reCaptcha data to the backend so admins can track the level of spam from the WordPress dash.

Has anyone built/worked on a similar functionality?