User`s guide

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Chapter4‐38
UsingSpecialApplications
Function Keys
Function Keys is an application that can call up operational features instantly. There are
three function keys for users to assign. For usage convenience, the default setting for these
three function keys are: Screen Rotation trigger for Ⅰ, System Settings for Ⅱ, and
Software Keyboard trigger for Ⅲ.
To activate the User Defined function, please first choose one of the function keys and tap
the User Defined checkbox. Then, a pop-up window will appear (as the figure below) and
you can choose an application program you want to assign. Once you have done, please
tap “OK” on the upper right side.