How do directors work — do I enter the same person for every company?

No — a person is recorded once on the People tab (date of birth, address, nationality, tax references) and shared by every appointment they hold, so a director of four companies is one record with four seats. The Directors tab shows seats by company, by person, as a timeline or as a seat list. The People tab can be narrowed to one company's current board and exports that board to Excel. These records are read by Company Secretarial (resolutions, registers) and Form Fill.