The following information is shown:
FortiExtender
SSID The SSID used by the device.
MAC Address The device’s MAC address.
Vendor Info The device vendor information.
Security Type The type of security used by the device.
Signal Strength The signal strength of the device.
Channel The channel being used by the device.
Rate The rate of the device.
First Seen The time the device was first seen.
Last Seen The time the device was last seen.
Directed By The device directing the rogue AP.
On-Wire If the device is on-wire.
Page controls Scroll through the various pages of rogue AP listings.
FortiExtender
FortiExtender is managed centrally in the Device Manager tab. When a FortiGate in the ADOM has managed FortiExtender devices, they will be listed in an All FortiExtender group.

Centrally managed
When managing FortiExtender centrally, FortiAP devices will be listed in the All FortiExtender group in the ADOM of the FortiGate managing the FortiExtender.
Centrally managed FortiExtender