Using apple wireless keyboard with PC and Mac

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I recently picked up an apple bluetooth keyboard for use with my mac mini and PC. I got a bluetooth receiver for my PC and now i can independly use the keyboard on the the mac and the PC. However, i want to use the keyboard on both the computers using a KVM (iogear usb 2 port kvm). Unfortunately for me, the apple wireless keyboard doesn't have a scroll lock button which is the hotkey for the kvm to switch between the two machines connected to it. Is there any way I can change this hot key? Any software that can change the functionality of certain key combinations?

Thanks for any help anyone can provide.

PS: I will be connecting the bluetooth receiver to the KVM and not use the bluetooth in the mac mini.