I contested one of the questions in the instruments paper that went some thing like "When the FLIGHT DIRECTOR is engaged in the LOC mode........" as Flight directors are on/off, and it is the autopilot which is engaged in the loc mode (or app mode) and although the crosshairs will follow ILS signals, the flight director does not have a LOC mode itself. Think I got the answer right as to what they were looking for, but you never know!