Feedback form data - dynamic tags

Hello - using JavaScript SDK, and I’m looking for information about to access information that was just submitted on Feedback form. I would like to tag Feedback Issue with a custom tag and use email address of the user that just submitted the form.

I’ve tried to tap into the event during init() using beforeSend method, but that event already had tags and everything else pre-set.

Is there a way to modify scope once feedback form has been initiated? Or how to tap into the data that was submitted?