Minecraft Creative Should Have an Option to Select/Move Sections of Land

So, I'm recreating Disneyland in Minecraft, and I accidentally forgot a building at the beginning of Main Street, and now I need to destroy an entire side I made just so I can make that one building, and then I have to build the rest, again. I was just thinking that it'd be so much easier if there was an option to select large sections of land and move all the blocks over. I know that I could probably use pistons, or slime, or honey, but there are lots of details inside that wouldn't be moved with the blocks on the outside. Again, this would only be an option in creative, mostly because I find myself having to do this more often than you might think, so I think it'd be a really good addition to the game. I play on PS4, by the way.