Can keys off the numpad be configured for different functions based on NumLock?

[Andras Simon]

2011/8/26, Dotan Cohen <dotancohen at gmail.com>:
> I would like to configure some keys to have dual functions, such as
> hjkl for the arrows and sdf for cut/copy/paste. Can the alphanumeric
> keys be configured for different functions based on NumLock on/off?

If you mean the numeric keypad, then probably yes, but I have no idea how.
I use those keys instead of a mouse with the help of xkbset:
http://www.math.missouri.edu/~stephen/software/#xkbset

Andras