Can rollback dupe method work

[Sya]

so far, i dont know if it can work, or it has low success rate, and if it can work, who can tell me how to work it, use alt+F4 rollback? who can answer my questions? im a newbie, thx

 

[_Ace]

Oh well... remember. STICKIES ARE THERE FOR SOMETHING. Hehe, u can't dupe with that, but it is usefull for uniding items, crafting... etc.