KVM and Mac Keyboards

I just got my IoGear GCS632, a nice KVM tool. I have everything connected properly but I am unable to switch between the two computers. It says to use scroll-lock on my computer keyboard, but obviously Apple Keyboards ship with no scroll lock or num lock key. Great.

I just found that ctrl + eject is the scroll-lock key. This is also the restart key, so I’m unable to use it as a switch. I think I need to re-map scroll-lock to another key, but I can’t figure out how.

Please help!