I checked out AVSIM this arvo and took a look at the TweakFS FREEWARE files. The FSX Config editor is something that people may find useful. I had a go and found it to be easy and allot easier than digging around in the config file through a text editor.
Now to be sure it doesn't appear you can add entries, but you can certainly modify those you currently have. Worth a look for what you pay, particularly if your not confident with configs.
Now to be sure it doesn't appear you can add entries, but you can certainly modify those you currently have. Worth a look for what you pay, particularly if your not confident with configs.