Automatic emails - COVID19 screening specific

Hi, sorry if its been posted already (I cant find if it has)
Automatic emails: Can we send more than booking confirmation and appt reminders automatically?

Problem: I have designed my C19 screening form and rather than me manually adding to a additional email, is there another automatic way? I send my appointment reminders to go out 2 days prior to the appointment but want the screening form filled in no longer than 24 hours before their appointment - so I would like a COVID19 email in addition to booking confirmation and appt reminder. Is it a case of one or the other? In which case, I will change it to 1 day before as a reminder. Monday appointments will need a Sunday email. Im fed up with phoning them all and ruining my Sunday lol.
Thanks in advance