I want to farm witches because of the resources they provide when killing them. I've watched lot of tutorials on how to farm them but all of them involve using a witch hut that is generated by the world in a swamp. I've tested this in a new creative world and worked as expected. Now I want to do it in my survival world, but the closest witch hut to my house is very far. I wonder if I can modify my map to "move" or "clone" this witch hut closer to my buildings so I can retrieve the materials easily and to not travel a lot just to check if I have enough redstone or other things. I've read that you can do it with McEdit but not sure how this works.
Additional info: I'm playing Minecraft 1.11.2 on a MacBook Pro macOS Sierra.