Icinga2 Dashboard with Graphite as datasource

I have noticed there is grafana dashboard id( 56)for icinga2 with graphite… After i imported i have noticed there are few metrics only… But in my icinga2 there are lots of metrics exists… anything i am missing? Can you please advise me the best way to configure the icinga2 dashboards in grafana with all metrics separated by host or service… I am using graphite as data source