There is a huge amount of things, ranging from starships to fighters, intergalactic communications systems to small datapads and a vast range of clothing, personal items, weapons, spare parts and so on. Some of these just need a little common sense, like clothes, everybody knows how to put on clothes (I hope). Others are not so easy. For instance, how does one command a ship’s systems? Do they sit behind a view screen tapping in command on a keyboard, do they mentally speak with the AI’s and computer systems to issue commands or is it something entirely different? The problem is that a lot of things have an explanation of technical specs and how this works, but not enough of how can I work with it.