How do I buy KCS on Coinbase?

Excuse me, I'm a bit confused about how to purchase KCS tokens on Coinbase. Could you please walk me through the process in a step-by-step manner? I'm particularly interested in understanding how to navigate the platform, select KCS as the asset I want to buy, and complete the transaction securely. Additionally, I'd appreciate any tips or considerations you might have to ensure a smooth and successful purchase. Thank you in advance for your assistance.