I have the PMDG 737NGX not recoggnised by Parkme too.
Editing the aircraft.cfg file as bellow works for me (for PMDG 800WL default livery).
title=B737-800 //PMDG 737-800NGX PMDG House Winglets
This means that we have to modify title
for all liveries [fltsim.xx
As noticed by Jon, chaning the name may cause issues with PMDG livery manager.
Using the title field value is probably not the best option to identify the aircraft type.
Would it be possible that ParkMe uses the sim
field instead which equals B737-800
Or if ParkMe can only get the "Title" value, finding the string "737-8
" in the title should be enough to identify the aircraft model.