No
No, That was patched as of 1.73
You can't...
To duplicate stuff in minecraft you have to be on multiplayer and two players must be in 1 chest with and item stack in it. They both have to click on it at the same time and it will beacome duplicated.
dooplicator
No. I tried it yesterday on the 360 and I duplicated my diamond picks!
write"/more" in comands
they got rid of that in the previous update because of a glitch
Minecraft Pocket Edition is simply not near as good as the PC version. You may not be able to duplicate things on the Pocket Edition because it is not in the JavaScript or the base game. :) Have fun playing though!
First, go to the Minecraft folder. Go to the save files. Copy the world you want, and paste it back in. This will copy the world, and make a duplicate.
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It could. If you want to save it then go to the save folder and make a duplicate or drag it into another folder and move it to your desktop, Documents or whatever folder.