Can anyone help me find or explain in detailed instructions how to import another cluster so that I can monitor multiple clusters under one Rancher GUI.

This is probably a #general Rancher question, not an RKE2 question. Have you checked the docs though? https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/kubernetes-clusters-in-rancher-setup/register-existing-clusters#regis[…]luster

I’m using RKE2 so I figured I’d ask it here. Thank you for the docs.