- Stop the server.
- Open Configuration Files.
- Click Text Editor for adminconfig.yaml.
- Find your SteamID64 at https://www.steamidfinder.com/.
- Replace the example ID with your SteamID64, preserving YAML indentation:
Elevated:
- Id: 76561198076386180
Permission: 3
Permission levels: 3 = GameMaster, 6 = Moderator, 9 = Admin.
Save the file and start the server.