How to change to legend header title name?

[lnwu]

like screenshot above, change the value to other custom names

grafana version: v8.1.0

[bdekoz]

examples on play.grafana.org have csv inputs, of the form metric name, metric value. However, non csv inputs (say SELECT field WHERE MEASUREMENT1, MEASUREMENT2) you want the label to be keyed off the measurements, not the field. There is no support for doing this in the piechart label drop-down menu, only value and field.