How do I add OMNI network to MetaMask?

As a cryptocurrency enthusiast, I'm interested in expanding my wallet capabilities. Could you guide me through the process of adding the OMNI network to MetaMask? I've heard it allows for access to a wider range of tokens and decentralized applications, but I'm not quite sure how to proceed. Could you explain the steps in a clear and concise manner? I'd appreciate it if you could also mention any potential security considerations I should be aware of while making this addition. Thanks in advance for your assistance!