I have a form that is supposed to have an attachment when submitted. Users are filling it out without an attachment. I would like to trigger an email when a form is submitted without an attachment. Right now, the only option i can find for an attachment under trigger, is when there IS an attachment included. I also tried creating the trigger by any value, using a missing attachment condition, but the option is not available. Is this a feature in the works or is there another way i can do it?