Locate and select the guest/reservation in the search results and click on the guest name.
You will be taken to the guest folio for that guest/reservation. On the top menu under Guest folio go to Modify Reservation tab and select Add/Remove Days.
Now you will see the tape chart displaying this specific reservation. To ADD additional days click on the available days before or after the days highlighted in yellow. To REMOVE days simply click on the days highlighted in yellow that you wish to remove. When adding or removing days the cost of the reservation will update accordingly on the right hand side of your screen. Once you have added or removed the days desired click 'Apply'.