Density histogram

Hi, I would like to compare histogram, so I need a density/normalized plot. I found this issue but still strugling. I’m using grafana version v8.2.3, qurying data from InfluxDB 2.0 with the following Flux query:

from(bucket: “GPS”)

|> range(start: v.timeRangeStart, stop:v.timeRangeStop)

|> filter(fn: (r) =>r._field == “speed” and r._value > 0.0)

I can get histograms with the graph panel or histogram panel but no way to get a relative Y-axis from 0-1, even with setting the Y-units.
Any help would be appreciated, in advance thank you.

|> histogram(bins: linearBins(start: -3.0, width: 0.2, count: 40), normalize: true)

You can get normalized histograms in Flux. But I did not manage to visualize multiple histograms the with bar plots in the same plot.