[Update for 767-400]

16 hours ago, 73samster said:

Do you know if there is a way to save that act file and put it back after the update?  would it work?

Yes, right click the acf file like you are gonna drag it, then simply release it in the same folder, and click on "Make Copy" and it will make you a acf file with -copy at the end of it.

[Update for 767-400]

On 7/18/2022 at 12:14 AM, 73samster said:

question, if another update is pushed by flight factor, will we have to re-install the mod again?

If it changes the acf file then yes you have to re-install the mod each time you update.