So those of us with backlit keyboards have been a little miffed that the modifier leds are unlit unless we toggle them on. This has two problems:
1. The Mac has no scroll-lock feature in the OS so you can't turn it on
2. Nobody wants to leave caps-lock on as you can't type without shouting
There is now a solution -
http://github.com/damieng/setledsmacSimple download the binary from the release page and put it somewhere on your machine then from the terminal run it with +scroll +num +caps, e.g.
./setledsmac +scroll +num +caps
If you only want to set the LEDs on a specific keyboard then use the -name option with a wildcard, e.g.
./setledsmac +scroll -name "*Ducky*"
If you're worried about running a binary from somebody you barely know just download or git checkout the project and load it into XCode.
Requires 10.5 or better, 32-bit or 64-bit are supported.
Update: I should clarify that this turns the LEDs on without activating the lock itself. So you can type with your caps lock light on but still in normal case.[)amien