Hi,
yes it is a config file. I added it there because someone asked me later for the profile. You can surely use it, I find it a good profile, it has 4 buttons (5,6,7,8 ) set as modifiers, so you can keep up with all the hats A-10 needs.
To load the profile, first change the file ending from .txt to .lua and load the profile from the in-game menu (you can save it where ever you like).
About the throttle: In the options menu search for: Axis/Throttle common and assign JOY_Z, and it should work.
If you still have questions, post them here and I will gladly help you.
Regards
PS: Welcome to the forums!