@mark I don't have any mixture axis assigned on the Bravo profile I'm using. I also don't have any keybinds assigned. Should I assign an axis and just keep it at max?
Thanks for reporting this! We've spotted a bug that prevents the "GPS" progress annunciators from illuminating amber on the FO side when tested and we'll get that fixed for the next update.
@flyforever the lift dumpers should deploy automatically on touchdown providing you have armed them on approach using the ARM button under the speed brake lever and to the right of the Captain's throttles. Once armed, this button will be illuminated red and you will see RDY on the LIFTDUMPER indicator on the glare shield, below the wiper on both sides. On touchdown this indicator will change to OUT to show that they are extended.
You can use the speed brake lever to deploy the spoilers in the tail as you cross over the runway threshold (manually) and this can be mapped to a key or controller buttons/axis found in the MSFS control options and searching for spoiler.
As far as I understand it, the comparator warnings are only used to indicate a failure, so they would never illuminate during a normal flight.
For example, the GS comparator would illuminate if you had the same frequency tuned into the VHF NAV 1 and VHF NAV 2 radios and the NAV 1 radio was indicating that you were below the glideslope, and the NAV 2 radio was indicating that you were above the glideslope.