Lastnight i made a duplication peice of all the items i need. They still
work if you hold X on a empty slot with them. Anyone who deletes the update and plays
offline, all you have to do is make a duplication peice and put it in
a chest somewhere and you will be able to use it with the update.

Hope this helped anyone trying to dupe a lot of items offline and wasting their time.
[Sorry if you dont understand, im not good at explaining things ]