It’s confusing isn’t it?
LabVIEW Multiplot Master Toolkit gives you 3 much better ways of plotting and comparing many signals with different units and ranges – plus a range of other tools.
One of these 3 chart formats is shown below.
An intuitive configuration screen allows you to divide you plots into groups and then the 2 drop-down menus above the chart allow you to display either 1 or 2 groups at a time. For this particular format, clicking on the plot area allows you to toggle between this format and a stacked plot chart that shows all you plots with one plot group in each plot area.