Is it possible to copy panel from one dashboard to another?
I have tried to copy panel as well as copy and paste JSON but always copied panel says N/A.
I tested myself and I can copy and paste from one dashboard to another in Grafana 5.2.4.
I did not have to copy the JSON.
Can you post your panel JSON here for testing?
Yes indeed. It works if I copy and paste entire panel rather than JSON.