Hi everybody,
this is a very annoying problem. In LV 5 the only solution I found is to display data on different charts and change scales at the same time, it should look like a stacked plot chart.
In LV 6 ,and further, there is a solution, you should use the property: Active Y Scale.
This works both on stacket and overlayed charts.
I attach a sample vi that shows it.
Regards,
Alberto Locatelli