Which two methods can be used to add a custom UI panel to a Webex room device? (Choose two.)

Which two methods can be used to add a custom UI panel to a Webex room device? (Choose two.)
A . Import an existing panel configuration file by connecting a USB storage drive to the device.
B . Use xAPI to push a JSON panel configuration to the device.
C . Create a panel using the device UI Extensions Editor (previously In-Room Controls).
D . Restore a device backup file present on a PC that contains a panel configuration.
E . From a T-shell session, use the git command to merge the XML configuration of a panel.

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Answer: AE