Following key names are avalable:

```
shift shift_r alt alt_r altgr altgr_r ctrl ctrl_r menu
esc	 f1  f2  f3 f4  f5  f6  f7  f8  f9 f10 f11 f12
grave_accent 1 2 3 4 5 6 7 8 9 0 minus  equal backslash backspace 
tab q w e r t y u i o p bracket_left bracket_right_ret 
tab q w e r t y u i o p bracket_left bracket_right ret 
a s d f g  h  j k l semicolon apostrophe
z  x  c v b n m  comma  dot  slash
asterisk  spc  caps_lock num_lock  scroll_lock  kp_divide  kp_multiply
kp_subtract kp_add  kp_enter  kp_decimal  sysrq  kp_0  kp_1
kp_2  kp_3  kp_4  kp_5  kp_6  kp_7 kp_8  kp_9  less   
print home  pgup  pgdn  end  left  up
down  right  insert  delete