I have looked all over the place and i can't find it. The only thing i can think of is that the categories indicate if they are stackable. aka Substances (stackable) and the rest, not. I'm guessing that if you deconstruct something they forget to add a type and it auto turns to some type that is 1-100. I can't find the return on destruction in the files, which would probably help, the items it costs to make are probably just split and returned if 1 or more. This puzzles me, i can't really find it and i can't stand it. lol A lot of guessing and not much finding, well i did find out how to exactly get an atlas pass but i rather find how to stack them. :D If anyone has an idea... Edit: Since MBinCompiler can't convert every file yet, there is still hope. :smile: