Thanks for the explanation of the attributes. All good to know and will surely prevent me from banging my head against the wall with future maps :)
Yeah, I kind of recall that but I didn't Forge much in Halo 3. I just don't get the Normal attribute if it locks the object after editing....
Maybe I'm totally missing something here but while Forging I've noticed that most objects, even though set to Normal, act as if they are fixed....