Why does the graph cursor (snap mode) snap to unvisible curves? How can i change that?

I display several curves in one graph. To get a better overview the user can filter unwanted curves by setting the attibute to unvisible. There is one cursor switched on in the graph with the option "snap to plot". The user can move the cursor and read the coordinates and curvename. Unfortunately the cursor snaps also to the unvisible curves. How can I block that behaviour? The cursor should only jump on the visible curves.

> with the property Cursor.Plot I can set or get the current plot number
> of the cursor, but I cannot prevent the user to move the cursor to an
> unvisible plot. Labview allows the cursor to be moved to a curve witch
> is unvisible in the graph. I want the user only to be allowed to jump
> betwen the visible curves.
>
The graph cursors can be locked to a particular plot or set to snap to
any plot/point on the screen. You cannot see invisible plots, and you
probably can't see black plots on a black background, but the graph
intentionally lets you place cursors there and other users wouldn't be
happy if it changed.
What we will likely add at some point is a way to truly show and hide a
plot. In the meantime, you can also just change w
hat is plotted.
Hidden plots can be removed, no points, and the cursors will not go there.
Greg McKaskle

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