I goes into the appropriate folder for airplanes or helis. The folder names are in German, so just check under your Reflex directory and you will find it.

I have sub-directories for aerobatic, jets, etc. YOu can create directories one level deep, but no further. Any sound files (*.wav) need to go into the parent model directory.

When you hit F2 for the aero and heli list, your new model will show up as whatever the model file is names as. There are *.mod and *.par files.

Hope this helps - have fun.