Build custom dashboards with the Instana data source plug-in for Grafana. The plug-in is available on Grafana along with simple getting started instructions.
You can also find the plug-in on GitHub.
Instana makes a semantic distinction between no-data represented as null and 0 as value. In order to avoid gaps in the Grafana dashboard, caused by the null values, open the Visualization and choose "null as zero" in the "Null value" drop-down.