First read MANUAL about tridef 3d ignition, and second do it like this if you need more advanced afto-focus:
"If you really want to modify a DDD profile, you can go to the profile folder, make copy of that profile and rename (DDD) to (Username). This new profile is now modifiable in game. It is considered a hack that we do not officially support."
After that just run ignition with game u need, push 0 (open OSD) than u find "PROFILE"....and do it whatever u want