LBZ timing tables and the Calculator

So I'm trying to learn to tune an LBZ Dmax and I have been looking at the timing calculator. When the results of the calculator are copied into all of the timing tables does it simply synchronize the Main, Pilot, and Post injections into one pulse or does it even work that way? And, my stock tune has Pilot 3 and Post 1 zero-ed out. Is that normal does anyone know? Bought the truck used and I don't know if it's been fiddled with. Thanks in advance for any help.