How to “turn off” a single curve from the plot without deleting it?

When there are several curves in the plot, it is sometimes useful to temporarily set one of the curves inactive without deleting it. WinMLS offers several ways of doing this:

In Plot->Chart Settings for Active Plot... all the available curves are displayed, they are shown in the plot only if the check box is checked. The list is displayed in the List of curves Toolbar (View->List of Curves Toolbar).

It can also be done very efficiently by turning on the legend button on the standard toolbar. The legend settings are found from Plot->Chart Settings for Active Plot..., select the Legend tag. Then turn on the check box named Check boxes.