The only way I can get my custom AI to appear is if I put my Ai planes in the "Prepar3D v2\SimObjects\Airplanes" folder. I'd rather keep my Ai planes in a separate folder, preferably on another drive even. I had no trouble doing this with FSX.
From reading the forums here others seem to have been able to add a line to the p3d config file like SimObjectPaths.x=SimObjects\Ai where Ai is the folder that has my Ai planes (just like with FSX). My config file doesn't have any "SimObjectPaths" lines, and when I add them, my custom Ai doesn't appear if I have the planes in my "Ai" folder.
Any suggestions would be greatly appreciated.