FS Global AFM doesnt recognise ICAO codes

[Demious]

I've got several addon airports where the elevation of the runway isn't correct, causing them to sink in a pit, or elevating the ground under the runway. This should be fixable with FS Global Aerodorm Flattening Meshes and some do, but airports with a ICAO of 3 digits aren't recognized by FS AFM.
How can I fix the elevation problems for those airports?

[bigcav]

Not sure, but l don't think AFM works in P3d. I would go on their site and check

bigcav