Allied Telesis AlliedView-EMS 3.10 QoS MANAGER - Manual (Page 18)

4.5 Apply
QoS/Cos configuration changes made through Add/Modify/Delete operations or
Inline Table Editing will not be immediately reflected on the device. QoS
Manager just stores these changes locally until an Apply operation is performed.
To apply QoS/CoS configuration changes to the device, click on the Apply button.
As a safety measure, before the operation is performed, you will be asked to
confirm the action.
During the operation, a progress window will be displayed to indicate the status
of the operation. At any point in time, you may cancel the operation by clicking
the Cancel button.
AlliedView™-EMS 3.10 QoS Manager User’s Guide Page 18 of 128