How do I add Lyx to MetaMask?

Could you please explain, in a step-by-step manner, how one can add Lyx tokens to their MetaMask wallet? I'm relatively new to the world of cryptocurrencies and would greatly appreciate a concise yet thorough explanation. I've heard that MetaMask is a popular wallet for managing digital assets, but I'm unsure of the exact process for integrating tokens like Lyx. Would it involve adding a custom token address? Or is there a more direct way? Thank you for your time and assistance in this matter.