System Feature
	Keyboard

Purpose
	Use of keyboard, including special keys

Syntax
	None.

Description
	The following shortcut keys can be used for easy navigation.


	F2	CLEAR COMMAND LINE
		Erases all text from the command line.

	F3	UP
		Recalls the previous command line from command history.

	F4	DOWN
		Recalls the next command line from command history.

	F5	FREEZE
		Freezes the screen. Output and error streams from all currently executing
		commands going to screen will be temporarily frozen. (Output and error
		streams going to other destinations will continue to work uninterrupted.)
		When the screen is frozen, the word 'Frozen' will appear at top of the screen.

	F6	UNFREEZE
		Un-freezes the screen. Output and error streams from all currently executing
		commands going to screen will be unfrozen. (Output and error
		streams going to other destinations will continue to work uninterrupted.)

	F12	RESET
		If you are inside a function, do, while, for, if or else, this key
		terminates them and resets as if the terminated constructs had never been entered.
		Functions already completely declared remain declared.
		Global variables already declared reamain declared.
		Local variables declared inside the terminated constructs are removed.

	Left Arrow	LEFT
		Moves one position to left within a command line.

	Up Arrow	UP
		Recalls the previous command line from command history.
		(Same as F3)

	Right Arrow	RIGHT
		Moves one position to right within a command line.

	Down Arrow	DOWN
		Recalls the next command line from command history.
		(same as F4)