I have been a Pro-NC user since 1999, and I do not know of any way to turn off the CL simulation moves. I have also asked several of my comrades here at work, and they concurred. DelCam is a different animal all together. You can however place a call to 1-800-prohelp as long as your company has a maintenance agreement with PTC. If there is a way to do it, they will know how.
Trying to find any significant info on Pro-nc is very tough. You can try the Schroff Development website. They publish and sell books related to CAD CAM applications. They are about the best I have found for Pro-NC.