DATA_3D RefLine() equivalent?

[rkm]

Is there any way to add the equivalent of a [RefLine()] (x=constant) to a DATA_3D plot? I'll only be viewing it from directly above (parallel to the z axis) with no rotation.

Obviously I could insert false data at those values to create a contrast but that has some undesirable effects.

Thanks,

-rob

[DPlotAdmin]

The Refline command will work with 2D views of 3D data, but requires version 2.3.2 or later.