There are two types of customization that can be done with HyperBBS: changing things that I designed to be easily changable, that can be changed within the structure of the BBS; and changing things that I didn't explicitly plan for.
The first kind of change is what we're talking about in this section. The second type of change is up to you -- though I do try to give you as much help as possible in the BBS Internals section.
The changes I planned for include rearranging the message sections, reordering Hyper House, and adding or subtracting access authorizations.