Is it possible for the text to show the "group by" value, not the raw value?

[mike-berriman]

My rainfall sensor reports every 5 minutes with the rain that's fallen in that 5 minute interval. So I've configured my chart using "group by: Day". Works awesome.

What I would like however is for the text shown to also show the current day's rainfall. At the moment it shows the sensor data, which is the rainfall for the current 5 minutes. I can only get the daily total by hovering over the last bar in the bar chart.

Is this possible to configure, or is it an enhancement request?

[helto4real]

It always shows the sensor data, it would be a new feature to show something else, like an attribute.