...it is not possible that you can have FPV and FD displayed at the same time.
I love the semi-quarterly FPV discussions.
The FPV has its own FD in the TRK/FPA mode
with the FD button selected.
The FD pitch commands for the FPV are 'selected flight path angle' and this value is displayed in the same window where selected V/S is displayed in the HDG/VS mode.
There is one button to cycle between TRK/FPA & HDG/VS and there are two FD buttons, one on each side (next to the LS buttons) which when selected will provide a flight director for pitch and bank steering (dual cue) with HDG/VS selected
OR a flight director (single cue) for flight path angle and track steering with TRK/FPA selected.
Triple ADR bad: No FPV,
BIG FPV flag
Double ADR bad: FPV available, reliable