What type of cockpit flight crew interface is used to enter or modify the data on the MFD?

What type of cockpit flight crew interface is used to enter or modify the data on the MFD? Correct Answer Keyboard and Cursor Control Unit

The flight crew can navigate through the pages of FMS and can consult, enter or modify the data via the Keyboard and Cursor Control Unit (KCCU). The Keyboard and Cursor Control Unit (KCCU) enables the flight crew to navigate through the FMS pages on the MFD and enter and modify data on the MFD and can also perform some flight plan revisions on the lateral Navigation Display (ND).

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Which of the following is not a way cockpit-flight crew interfaces in the FMS?