Open the Booking you wish to clone
On the top right-hand side of the book select the Actions drop-down
Select Clone Booking
Check the box next to the items you wish to bring over to your new Booking
Select a start date for the new Booking
Select Clone
When cloning a Booking, the new Booking will follow the same date pattern as the original. So for example, if you clone a Booking with an Event, and the Event starts two days after the Booking Start Date. The same will be true for the clone.