There are two ways to cancel selected nights of a reservation in FrontDesk Master.
Bed View
Select nights you want to cancel by clicking them on Bed View. Then, right click on the reservation and choose option Cancel Selected Nights:
Reservation Form
Open the Reservation Form and change the dates of the reservation for each guest separately or for the whole booking:
You will see all cancelled nights in the Reservation Form. You can restore them by clicking on Restore icon:
See also: