God if you find Hik confusing you have no chance with proper CCTV, the main reason Hik is so popular is because no skill is required to install it, a trained monkey can do it. No set up, no back focusing, no setting changes required, just plug and play. Every security company, photo copy shop, locksmith, and painter and decorator is installing Hik down south. Personally I hate the stuff its cheap, no skill required to fit it, it has been hacked on a grand scale, oh and its 42% Chinese state owned. Dahua are similar to Hik in the big scheme of things, its hard to avoid Chinese stuff.