@TheFlyingSc0t for a temporary company name you can use the command "company", the name can NOT have spaces, for example: company BritishAirways
Notice that once you reset or reload the script, the company name will always go back to model's default company.
If you use the aircraft always with the same company livery, and want it to load always with a specific company name, you can set a new default name for that model through "plane.company = company_name" command, for example: plane.company = BritishAirways
Once you use that command the script will associate on models.xml that company to the current model. If the aircraft is using "Default" profile (press ctrl+n to check it) you won't be able to change it as standard through command, for that use the command "plane.create(spawn_code)" command to create a profile to that aircraft, after that you will be able to set a new default comapny for the aircraft.
General Instructions:
For temporary use (changes back after reload/reset):
1. Use "company company_name" command.
2. Press ctrl+n to check if it changed to what you intended.

To set as new deault when loading the aircraft:
1. Press ctrl+n to see if model is using "Default" model.
1.1. if model is using "Default" profile create a new one using "plane.create(spawn_name)" command.
2. Use "plane.company = company_name" command.
3. Press Ctrl+N to check if it changed to what you intended.

If you are still having trouble, let me know.

@TheFlyingSc0t This gave me an idea for a next update: create fields on aircraft's profile to set company names to each livery, so it will change company as soon as livery changes, all the player will have to do is setup the association like:
<livery value="1" company="BritishAirways"/>
such setup will be once in a lifetime for each model (unless the players install/removes livery for that model)

Thank you, your doubt gave me an idea of what to do :D

@Degas Thank you very much! Haha, no problem. So far I'm absolutely loving this script. You are doing a great job!

@TheFlyingSc0t glad you are enjoying, you can always drop your questions in here if you have any.

How to install? Thanks

@norleah26 put FlightAssistant.dll, FlightAssitant.xml and Data folder inside "scripts" folder located on your game root folder. If you don't have scripts folder, create one.

@Degas Thanks

@Degas, sorry to ask but is it possible to use this script into FiveM server?

@Justatanil091 unfortunately no, and there's no prevision in sight to make it compatible for now. It would demand some time to understand FiveM environment and make required changes (possibly involves rewritting entire code, not sure). I'd also need a server on my own for all the tests, which could be quite demanding for my machine.
Time is one of the things I'm missing at the moment, but IF and WHEN I decide to go for FiveM, I have some new ideas and features to apply that would make much more dynamic.

why does it detect a virus? the mod is amazing.

@hitler123 Only with this mod it happens?
This mod changes external files (the .xml files in the subfolders) and execute an external call for the audio (mciSendString). Perhaps the external call for the audio is labeled/detected as invasive/malicious behaviour.
If the virus warning comes when you enter the aircraft (when the script effectively starts working) then try using the script without the sound. For that, change the following property in config.xml (inside Data folder):
config -> allower -> <sounds value="false" />

If the virus warning pop up when downloading, then maybe is your computer rejecting *.dll files (mine did that as standard)

P.S: Sorry for late reply, been busy lately.

Installed this mod yesterday and worked great, but it seems the engine on most planes will not boot up, "I" isn't doing anything. Any help would be appreciated. Thanks

@Degas Any Ideas why the engines on the base 'Jet' won't turn on, even after pressing I they just refuse to work

@Cbarlow158 the base jet doesn't have the spinning animation for the engines (unlike Buckingham Shamal), therefor the script doesn't recognize the engine being on. A quick fix for that is set/insert <engineBone value="4" /> on Buckingham Jet parameters on models.xml (quite in the end of the file), or issue the command plane.enginebone=4
Being 4 the number of "virtual" engines.
Virtual engines do not recognize when they are damaged, as the bone (usually misc_a, misc_b and such) is what determines if such engine is spinning or not. Most add-ons have those bones, but the opposite is true for game's base planes.
Let me know if it worked.

@Degas Works Perfectly, Thanks so much for the help!

@Cbarlow158 Glad it worked out fine. If there's any other trouble, you can always leave your doubts or suggestions here.

Simply awesome. Love it!

@SolemnSnow thanks! there's still more to come when I have extra time.

hi great mod! just wondering why the landing gears are locked and when i apply throttle the wheels are simply doing a skid on the tarmac...

@HalcyonFromMars Sorry for late response, first time hearing about that. Does it happen with all aircrafts? Try playing the game with only this script running (to check if it's another script interfering).
The only time the script applies brakes is during landing, and it is not even handbrake, if wheels are locked and leaving a skid it means something else is activating the handbrake, as far as I'm aware this script does not use that brake mechanism in any moment, going to check it again just to be sure.