Zoom events - create a new attendee email

Hello,

I am preparing a multiple-day conference with Zoom Events (pay per attendee with a Business license).

Is it possible to create an attendee email from scratch and customise the date/time it is sent?

I would like to contact people who have registered in order to share some event updates before the conference. 

I don't even see a way to amend the date/time one of the existing email templates is sent out?

Thanks in advance

K