May be you dodin't understand my phrase : I mean the 747 salty mod installed not the 777.
Anyway here are the contents of other forums about this issue which seems to be a HUGE PROBLEM
show up , no hdg select indicators

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corsica002b 6 day(s) ago

it is because of the irs impossible to align the mod is useless I think because impossible to fly with

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capiel 6 day(s) ago

if you concern about the airport layout when part at the gate, kindly press the TERR button located on the glare shield panel. Zoom out if you want to see your flight path line, because you wont see it since the map zoom in to the gate where you parked.

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axeldude 6 day(s) ago

IRS issue should be fixed in the new version!

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corsica002b

6 day(s) ago

hello are you sure the mod works because I have black screens? thank you (I am only this mod and no other I specify)

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Karlschen 6 day(s) ago

The same......

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Mitchelel 6 day(s) ago

you need to install the dev version,of the salty 747

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corsica002b 6 day(s) ago

hi and thank you i just did it and cannot align the IRS even in the mcdu it tells me not aligned