Teledyne LeCroy WaveRunner 6 Zi and 12-Bit HRO Getting Started Manual - Manual (Page 106)

WaveRunner 6 Zi and 12-Bit HRO
98 922136-00 Rev A
Cursors on Math Functions
You can place cursors on a math function whose X-axis has a dimension
other than time (FFT, for example). With a Math trace setup for either an
FFT or a Histogram, if you then access the Standard Cursors dialog
(Measure → Cursors Setup...) , an X-Axis control is made available where
you can choose from available units. The following shows cursors on a
histogram and therefore an appropriate selection for V (histo) is available.