- Find and copy your 64bit SteamID. Your SteamID can normally be found in the address bar of your Steam profile, but can also be found here after entering your username.
- Open the NFO control panel and select the "Server control" tab.
- In the RCON box enter "ownerid <64bit ID here> <admin name>". "moderatorid" also works.
You're now an owner of your server and benefit from being an admin. Admins can issue all console command via the in-game console (F1) and also gain the ability to fly with right-shift + L along with instant craft.