For HotKey use

BACK
TAB
CLEAR
RETURN
ESCAPE
SPACE
PRIOR
NEXT
END
HOME
LEFT
UP
RIGHT
DOWN
SELECT
PRINT
EXECUTE
SNAPSHOT
INSERT
DELETE
HELP
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
NUMPAD0
NUMPAD1
NUMPAD2
NUMPAD3
NUMPAD4
NUMPAD5
NUMPAD6
NUMPAD7
NUMPAD8
NUMPAD9
MULTIPLY
ADD
SEPARATOR
SUBTRACT
DECIMAL
DIVIDE
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
EQUAL
MINUS
RBRACE
LBRACE
QUOTE
SEMICOLON
BACKSLASH
COMMA
SLASH
PERIOD
BACKQUOTE
ENTER
NUMPAD_ENT
NUMPAD_EQ

For HotKeyModifier use
Separate with a +
e.g. Shift+Down

Shift
Alt
Control
Down
Up