Related Questions:
Can I duplicate an Invoice?
How do I make a copy of an Invoice?
Procedure:
From the Invoice List
On the left-hand side Menu select Invoices
Locate the relevant Invoice
Click on the down arrow on the right-hand side
Select Clone
From a Booking
Click on the Invoices Tab
Locate the relevant Invoice
Click on the down arrow on the right-hand side
Select Clone
Additional Information:
Cloned Invoices can not currently be re-assigned to other Bookings