Can't download AWS SSH Keypair

I am using Rancher with EKS on AWS. I successfully deploy a cluster but I can’t figure out how to download the keypair so I can manually SSH into my nodes. I read that I should be able to do this by going to the nodes section, clicking the 3 dots button and pressing download keys, but I don’t see those options. When I got to AWS, I can see my ec2 instances have pem files associated with them, but I can’t see anywhere I can access them.