I'm using a form hook to auto populate the email address of the logged in user to a form. Doing this, it won't allow me to setup a user notification because the form doesn't think I have an email address to send to.. probably because it's not a field on the form. I actually don't want it to be a field because the form is for logged in users. In order to make this work should I add the email address field to the form, hide it with CSS, and add the logged in users email address by hook? Any help would be appreciated and sorry for any errors or bad grammar, typing from my iPhone in a coffee shop.