You can create email templates for emails you send frequently so you don't have to type the same thing each time. One of the four types of email templates has been renamed from "Scheduling" to "Schedule". A common misconception is that those types of emails were only used to send the initial Scheduling request, but in reality they are used to communicate any information related to plans in a person's Schedule.
Create a Schedule template for a customized version of the initial scheduling email or any other email related to plans in a person's schedule, sent from a plan or the Matrix. Nothing has been changed about these templates, only the name.