Hello.\ I did this tests at SOLEIL with taurus 5.2.0: - run `taurus plot "eval:Q(rand(333),'mm')" sys/tg_test/1/wave`, _(where sys/tg_test/1 is a tangotest device)_ - with "Plot configuration", ensure "Q(rand(333),'mm')" is red and "wave" is cyan - with "Model selection", add tango/tangotest/1/short_spectrum_ro _(where tango/tangotest/1 is a tangotest device)_, and name it "short_spectrum_ro" - with "Plot configuration", ensure "short_spectrum_ro" is green\ -> because "short_spectrum_ro" has higher values than the 2 other spectra, they appear as compressed at the bottom - with "Plot configuration", put "short_spectrum_ro" on Y2 axis\ -> it becomes hard to see that spectrum, because Y2 axis does not adapt to it, but seems to adapt to the spectra on Y1\ And right clic on chart, Y axis, auto, changes nothing to this behavior\  \ \ I found no way to change this in my plot.