Network/Disk activity on keyboard LEDs

[descombobulator]

In the dim and distant past I came across a utility that would duplicate the network and disk activity on the keyboard NumLock and ScrollLock LEDs. Does anybody know of such utility? Much easier than hanging your head under the desk!

 

[descombobulator]

That'll do nicely

NathanE: it doesn't mess with the Num Lock *state*, it just modulates the LED.