When viewing ECAD data from Zuken or IPC-2581 format the silkscreen layer in CREO view does not allow us to differentiate between the REAL silkscreen that is being printed on the end product and silkscreen that COULD be printed on the end product but isn’t. What I think should be done is the silkscreen layers from Zuken should be layers symbol A and symbol B only and symbol A-1 and symbol B-1 should be on a separate layer named something else like assembly data which is really what it is. Right now you have no layers that show the assembly layers of the board and they get stuck in the miscellaneous layer section attached. All you have is a package boundary layer which isn’t very useful. The assembly layer and symbol A-1 and B-1 have the same assembly information except the symbol A-1 and B-1 layers have additional silkscreen information as well. Either 1 of these layers could be used to make a new assembly layer in the CREO view predefined list and then the silkscreen layer would only contain the silkscreen that will actually be printed on the final product and it won't have all of the extra package outlines that it does currently.
