DataCursor Smith
Starting from version 10.5, ViewSmith has a built-in data cursor, which automatically tracks the closest series value to the mouse cursor and allows showing it in a result table. The cursor works identically to the cursor in ViewPolar except for showing real and imaginary values instead of amplitude and angle. Refer to chapter 10.9 to see how to configure the data cursor settings.
Data cursor tracks PointLineSeries but not Markers.

Data cursor in ViewSmith.