I'm trying to figure out how to edit and apply an existing Kubernetes resource on PhpStorm 2019.3.

I currently have a config into .kube directory in my home folder. Therefore the IDE is able to show me the whole cluster:

But when I open a resource, I can't edit it:

According to plugin documentation I should be able to

Applying resource YAML configurations from the editor

but I can't find out how.

Any thoughts?