How to display one single curve as Solo?

When there are several curves in the plot, it is sometimes useful to display only one of the curves temporarily without deleting the others. This can be done with the button on the toolbar, or from Plot->Solo Active Measurement.

When Solo is on, only the active curve is active and displayed and the other curves will not be visible in the plot, only in the legend. If Solo is turned off, all curves that were displayed when Solo was turned on will be displayed again.