I am very new to lighting and my school is about to order an etc educational pack that includes etc nomad and the gadget II and whatnot. What do I do? I watched a video and I am mega confused. They started talking on light talk and I don't know what they were saying. What is a show document/file? Do I need to download eos, cobalt, or hog 4 PC for it to run, or are they optional? Please help.