That would be nice. I generated a map using the editor that was huge with lots of interconnecting islands that were nearly touching each each other. They were so large that without a map I was getting lost. I think that the "Survival" game is not a randomly generated world but a scenario pre-made and that the only random factor is the island you start out on.  If this is correct then that island that @6Cowa6Bunga6 started with would be one of those islands (that's a decent size for the starter island). I think I read there were 16 of them. Look at the option we have to generate in the editor or with creative (the same options) yet with survival we don't get any of those options. I think we need to be able to generate survival worlds with options that we have to generate creative world. If they included the protective barrier in the editor, then we would be able to do just that... with the exception of having multiple biomes as mentioned by  @mid endian. Just adding the PB to the editor would open so many doors for both survival and multiplayer dedicated. And I may be wrong but I think that the only thing that makes the creative worlds "creative" is that you start with those in-game tools. Destroy those items and you would have a survival world with your specs, except that you also don't get a PB with the creative world. It's the lack of PB in both creative and the editor that is holding me back from what I want to do.