need info about copy in memory file

[mmlm]

HOw many kind of code can do the same function. : copy

I want to make an application able to copy under the cursor what I have in my inventory for move it whitout move the real one ..

I want to sell soj to marchant whitout spending my sojs

it is possible to copy the code of the item I have in enventory for sell it to marchant or at less I want the marchant tink I have sold a soj.

I dont like other dupe method and it's wy I try to do someting for My need. because the only ting I need is soj for sold to marchant for walk dclone as many time I want whitout take 3 day trying duping all sojs...