Where can I delete/expire old API keys? Where to generate sandbox keys?

All the previous posts related to this topic are too old.
I created API and sandbox keys few months ago. They still work today. When I logged in to the coinbase cloud I saw that there is a new UI and somethings were changed. I can’t see where to generate sandbox keys (deprecated?) and I don’t see my already active keys listed. Any help? How can I expire my active keys if they are not listed in Coinbase ?