In Order to edit existing reservation, follow this path.
Step 1. Login to POS, Access Manage Reservation (Depends on your POS home screen setting)
Step 2. Search/Locate the reservation you want to edit. Tap to “Edit” button to edit reservation. You can use the search option to find it.
Step.3 Once you locate your order, click on the “Edit” button to edit the reservation. Edit the reservation details and save it.