SAndbox can let you build wahtever you want to, no that one cyan box where you store numbers on it, you can build whatever you want to!, click on the extractor to add 1, like if you clicked on a extractor saying 1, it makes 2, to remove 1, right click on the extractor, Example: if you rightclick on extractor 2, then it gives 1, also all factories unlocked in sandbox!, If the owner sees this, please add this!