How do I add NYX to Metamask?

Could you please explain the step-by-step process of adding NYX tokens to my Metamask wallet? I'm not familiar with the process and would like to ensure I do it correctly. Are there any specific requirements or settings I need to adjust within Metamask before I can add NYX? Additionally, is there a specific contract address or network I need to use when adding NYX? Lastly, how do I ensure that the NYX tokens are securely stored in my Metamask wallet once they're added? Thank you for your help!