Don't feel bad about having difficulty with this one! I think something must've gotten lost between translations.
First off, it's a "user's byte", not "bit". A "byte" consists of eight "bits", but none of this computer jargon should have been used in the manual. Oh, and they're NOT saving it in hexadecimal either! Hex is a number system that goes from zero "0" to fifteen "F" as in: 0123456789abcdef. But again, this is totally irrelevant.
Instead, it should have been worded something like this -
There are several (up to eight) different settings you can adjust and the camera will "remember" them. Each setting is either an "on" or "off"; "yes" or "no" setting.