You can switch modes by pressing the function keys on the top of the screen.
Function Keys
You can use the function keys when [Function Key] in Screen Features is enabled. See "Screen Device Settings", Connecting the Machine/System Settings.
You can register often used functions to the function keys by using the following procedure:
Press [Home] () at the bottom of the screen in the center.
Flick the screen to the left, and then press the [User Tools] icon ().
Press [Screen Features].
Press [Screen Device Settings].
Press [Function Key Settings].
Select the [Function Key] check box.
Select [Function Key 1], [Function Key 2], or [Function Key 3] to which you want to assign a function.
Press [Allocated Function].
Select a function you want to register from the list.
Press [Display Name].
Enter the function name to display on the key.
Press [OK].
Press [Home] () at the bottom of the screen in the center.
The function key is registered to the top of the screen.
You can enlarge the function keys by changing Screen Features. For details about the settings, see Enlarging the Function Keys and System Messages.