NFS Dashboard for Grafana

Hi, I could see two dashboards for nfs statistics i.e, 6257, 8862. In this dashboard few of the panels are not showing any data. And there is no panel for nfs clients, queue time, requests and response.

Can someone help me in this regard.

Thanks!

I am trying to use predefined dashboards because i am not aware creating dashboards by writing the queries. If someone could help me with this it would be more helpful.
Thanks!