Schedule follow up email for all occurrences of recurring webinar

I've scheduled a recurring webinar for every week on Monday and Tuesday.  I'd forgotten to set up a follow up email to attendees and no shows.  Is there a way for me to create a follow up email for all occurrences of the webinar?  I can only seem to find a way to add the email for one instance at a time.  ..I'd have 60 instances to update