Already got that on my own but thanks. Actually it's more complex than this. You can mix up three addresses to 'generate' an item and by this you can basically 'generate' thousands of items. However the game has A LOT of free spaces between item values. It took me hours to find items and nearly the same amount to add them to the editor in a user friendly way.
PS: I've already found and added over 1,200 items. That's over 6,000 lines of code I wrote. Should be enough for an editor which was released a day ago, for now.