Teledyne LeCroy ArbStudio - Manual (Page 86)

ArbStudio
78 922244-00 Rev A
Other field values on the toolbar show the Active (or ID) of the currently
selected cursor, and its Absolute and Relative positions.
When Markers are turned on, all of the cursors present in the Digital Editor
are listed inside the Marker screen.
The Master Cursor is the one labeled with the following icon.
Relative positions are calculated from the master cursor position.
The master cursor automatically moved during a data search operation to
show relative results.
Change the master cursor by selecting the new cursor in the marker
window and clicking the Master Cursor icon in the Digital Editor toolbar.
NOTE: In the Digital Waveform Editor window, the master cursor is shown
in blue while the other cursors are shown in yellow.