I could happen to make a dupe. But unfortunately it was only a 'visual' dupe ending up bugging my inventory. Meaning, you make the dupe, visually double/triple/whatever the number but they don't exist for real. And the bug is even if they exist serverside, it still occupies the slot of inventory. Even if you relog, you see they are visually gone but the slots which were once occupied by the 'visual duplicates' are still unavailable like they are being occupied by an invisible item which ends up not using your inventory properly. I thanked god for trying it over a mule character, not my main. And for the curious; it is made by using UCE. I wanted to say that making such kind of clientsided hacks will stay only visual since those datas are serversided. And unless a bug/glitch(since they are also serversided) is being figured out and used, it seems impossible to do this with conventional client-sided data editing methods.