multiple team members in a schedule at the same time

How do i get multiple team members in a schedule at a given time. Ex:

Monday - Friday 8:30AM - 5:30PM I need
Bob, Sarah, Jim, Bayley

Tuesday - Friday 8:30AM - 5:30PM I need
Bob, Sarah, Jim, Bayley, Fred ( Fred comes in on Tuesday )

Saturday - Sunday
Fred

Do you want Bob, Sarah, Jim and Bayley to be on call at the same time monday to friday? You could create a schedule for each. Monday - Friday 8:30 AM - 5:30 PM and then a schedule for Fred that is Tuesday, Saturday and Sunday. Put all the schedules on the first layer of the EP that you want them to respond two.

You can copy a schedule with the duplicate function. https://support.pagerduty.com/docs/edit-schedules#duplicate-a-schedule