Which Two Methods Can Be Used to Add a Custom

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. From a T-shell session, use the git command to merge the XML configuration of a panel.