Compatibility Official & Community built dashboards with PMM2

PMM2 has got functionality of monitoring external exporters.
But it's required to have a dashboard for a new data.
The best source of dashboards is [https://grafana.com/grafana/dashboards

Mainly all community dashboards are based on default labels:

• instance
• job
  e.g.
  
  PMM2 is using more extended list of labels.
  e.g.
  

So manual variables and formulas modifications are involved in order to use an external dashboard in PMM2.

It's required to invent a way of simplifying process of importing community dashboards.