PMDG MD11 Passengers seen as freighter

[STS124]

Hi,
I recently upgraded to GSX L2 and re-installed the PMDG MD11
Now on my last South America Trip with the KLM MD11 GSX insisted on treating the plane as a freighter, i.e. not spawning passenger stairs and not allowing passenger boarding.

If someone could tell me how to get GSX to recognise the Aircraft as PAX that would be appreciated.
Simon

[Captain Kevin]

With the MD-11 selected in the simulator, open up the GSX aircraft editor, then make sure the cargo variant is unchecked.