You probably know most of this but I will write what I needed to hear at this point
This is still working in 1.6.2
You start by finding your item or potential list of items by searching your inventory using the amount of them you have in the stack.(This is explained in GG help)
Ok, now the confusing part, NoFear figured out the path through pointers to find the item id. When you find the right path the pattern of addresses that are purple or white will look the same. What we are doing in this hack is following a pattern till we get to the address of item id, copying it and pasting it over the address of another item(like wood) or gas(in the shop)
Watch the video 'LDOE 3 different Pointer Hacks (NoFear's method)' this will show you the pattern and how to set your options.