If you want to assign a function key to one of the available application hot keys,
select it in
the drop-down list associated with the function
(Function keys column).
If you want to assign a number pad key to one of the available application hot keys,
select it
in the drop-down list associated with the function
(Number pad keys column).
Click on Save.
INFO:
If you accidentally press a function key or assign a key on the numeric keypad
twice, an error message will appear on saving the entries, and
you can then correct the invalid entry.