Grafana and InfluxDB tools in OroCRM

When we need to analize much information, we can use charts in OroCRM. There are many ways to create them – in OroCRM a chart widget can be simply added by few lines of the code and configurations. But what if we need something more than having a chart with predetermined values dependency? For example, we need to build some new dependencies already from the existing values just in few simple actions and then apply some functions to them or group them by any parameter without complex modifications in the code.