Import a cluster using kubeconfig
You can import your existing cluster using kubeconfig file or content.
Option 1:
On the left panel, select the first option I have the kubeconfig file.
Then just upload or drag and drop your kubeconfig file.

Option 2:
On the left panel, select the second option I want to paste the kubeconfig content
Then just paste the kubeconfig contents.
Also you can edit here.