You must edit the files in your map to achieve this. This is doable with any mod map. I included my upper midwest maps_growth file. You must remove it from the zip file, then follow the instructions in the image.
Might require a new savegame.
Credits:
Vollmer
How to install
FS22 Misc?
Firstly find a mod which you like and want to download. Then download a mod to your PC. Mods are usually in .zip format file. But sometimes it can be in .rar. If a mod file is a .zip format no needed additional actions. If a file is in .rar, then you must unarchive mod with software like WinRar or Zip7. Windows 10 users no need to use software for archives, Win10 itself has a feature to unarchive files.
The next step is to find mods folder in your PC. Usually, it is in Documents/My Games/Farming Simulator 22/2022. Open the "mods" folder and put downloaded .zip archive or unarchived .rar file to this folder.
Last step. Enjoy of FS22 mods!
