EXFO PSO-100 Series Optical Sampling Oscilloscopes - Manual (Page 68)

Setting up and Using the Optical Sampling Oscilloscope
60 PSO-100
Using Markers
To move markers:
When the appropriate marker is selected, click on the screen where you
want to put it.
To switch between the markers:
Right-click on the screen and select Toggle marker.
OR
Select the Display menu, then Markers.
To remove the markers:
Right-click on the screen, then click on the marker to remove the check
mark.
OR
Select the Display menu, then Markers to select the marker and remove
the check mark.