HAHA, Simple math. say the dimmer pack is on dmx address 10. And you put 4 par 56 profiles in there one is at 10, one is at 11, one is at 12, and lastly 13. if you were to use a dimmer pack profile and not par can profiles you would see that it will occupy this same space. So if you start the dimmer pack at 10 and it uses 4 channels, it is using channels 10, 11, 12, 13. Make sense?
Welcome to the forums. I hope this helps. If not let me know.