Hello. I am trying to use a form to create a simple e-vite where a user can enter in their email address and a friend's email address. The email would then be sent from their email address to their friend email address. I am not sure if this is possible using gravity forms. I can do then 'Send to' email address using to the Friend's email address field (under 'Notification to the user.' But, is it possible to configure the 'From Email' to use a form field?