1) Find the H1Z1 UserOptions.ini file
Solution 1: Located in C:\Program Files (x86)\Steam\steamapps\common\H1Z1
Solution 2: Launch the game (click on the yellow square from the screenshot), then “Open Game Directory”
2) Make your modifications
Open and change whatever you want ! For example, use the Stormen h1z1 settings.
Save the file, then launch the game and enjoy.
You can also find h1z1 settings from pro players on this website.