Teledyne LeCroy LabMaster 10Zi Getting Started Manual - Manual (Page 137)

LabMaster 10 Zi Oscilloscopes
130 LM10Zi-GSM-E 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.