A font may be thought of as a collection of glyphs, plus considerable metadata—information about the font as a whole. Most of this metadata, called Font Info, is handled via the Font Info dialog, File > Font Info (CmdOptF).
Alternatively, the Font Info panel can be summoned via Window > Panels > Font Info. It is less comprehensive, but as it is non-modal it can be kept open and available while working on other aspects of a font.
Font naming is the single most critical aspect of Font Info.