PMDG 777 ADIRU alignment time

It takes around 20 seconds. Is this realistic? If not, where can I change the setting? I couldn’t find anything in the PMDG Setup page in CDU

From the manual:

IRS Options Sub-Menu:

Under the SIMULATION menu (page 1), an IRS OPTIONS sub-menu at LSK 6R contains options related to the aircraft’s Inertial Reference Systems.

  • ALIGNMENT TIME: Normally, the IRS takes approximately ten minutes to align, during which the aircraft cannot be moved. Sometimes, this is inconvenient in a simulation, so we have offered alternatives to allow you to align the IRS more quickly.
    • REALISTIC: This option will force the minimum ten-minute alignment while the IRS senses planetary rotation to bring itself to full alignment.
    • FAST (30 SEC): This option will align the IRS in 30 seconds, thus requiring that you be aware of the alignment requirement without making you wait ten minutes.
    • INSTANT: Just as it says.
    • USE LAST MEMORY POSITION: A modern ADIRU/FMS can remember where it was when it was powered off. You can simulate this by setting this feature to YES.

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Thank you!