It specifies the WMM optimization modes supported by the AP:
Optimized For scenario with 1 - 10 users: If 10 or less clients are connected to the AP, you are
recommended to select this mode to obtain higher client throughput.
Optimized For scenario with more than 10 users: If more than 10 clients are connected to the AP,
you are recommended to select this mode to ensure client connectivity.
Custom: This mode enables you to set the WMM EDCA parameters for manual optimization.
If the check box is selected, the No ACK policy is adopted.
If the check box is deselected, the Normal ACK policy is adopted.