Someone is offering to sell me a Big by Langley mixing console for a very low price. However, I do not know very much about the desk. I have been unable to locate a user manual, or any instructive info for it. A few questions: 1. Can the desk be used as an analog desk without the "Supertrue" automation software? 2. Can the desk be used without any software at all? 3. Where can I find instructive materials? 4. Any major known malfunctions of the unit?