The keys you can define include:
Type of Key Key Name
Function keys PF1 through PF4
(VT100 and VT200)
Application keys KP0 through KP9
(VT100 and VT200) ENTER
MINUS
COMMA
PERIOD
Top-row function keys F6 through F20
(VT200) HELP (F15)
DO (F16)
Editing keypad (E1 FIND (E1)
through E6) INSERT_HERE (E2)
(VT200) REMOVE (E3)
SELECT (E4)
PREV_SCREEN (E5)
NEXT_SCREEN (E6)
Cursor keys UP
(VT100 and VT200) DOWN
LEFT
RIGHT
Control keys Ctrl/A through Ctrl/Z, including:
(VT100 and VT200)
Ctrl/H (BS)
Ctrl/I (HT)
Ctrl/J (LF)
Ctrl/M (CR)
Excluding:
Ctrl/Y-Interrupt
Ctrl/C-Cancel/interrupt
Ctrl/O-Output off/on
Ctrl/S-Suspend output
Ctrl/Q-Resume output