If you have team members who often work on the same project every week, month, or every couple of weeks you can set up their bookings to repeat automatically. 

Head over to Scheduling:

To set up a repeating booking, create a new booking first, or click on any of the existing ones. Then, click the repeat booking icon. 

Set up the repeating interval and how many times you want the repeating to occur:

When ready, click Create bookings.

If you want to delete repeating bookings, you will get the following message:

Select one of the available options, depending on what you want to do, and then click the Delete booking button.