Hi Fred,
The example you downloaded is for our "LabWindows/CVI" programming environment. It is not a graphical programming language, but uses the text based C language instead.
I'm not sure exactly what functionality you desire, but I've attached a really cool example (maybe rather complex for what you want) that is created in LabVIEW.
LabVIEW has support for multiple Y axis. You can assign varius plots to each scale (Y axis) and show/hide various ones. This can either be done on the front panel manually (by right clicking), or programmatically like the example shows. If you have any specific question, let me know!