Working with Application Graphs Applications
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave 
Multichannel System, Fourth Edition
161
How to Lock Markers to the Curve
You can lock markers A and B to curves by performing the following 
instructions:
1 Press the [Menu] softkey and move to <Lock to Curve>. A menu displaying 
the options displayed in “The Lock to Curve Menu” on page 161 appears.  
2 Press the [A] softkey to lock marker A to a curve. The number opposite 
Marker A on curve:
 is highlighted.
3 Use the cursor key to move to the legend number of the curve to which you 
want to lock marker A.
4 Press Enter. Marker B will be locked to the same curve as marker A, if it was 
assigned to curve 0 immediately before, that is, it was unassigned  immediately 
before.
5 If you want to assign marker B to another curve, press the [B] softkey, use the 
cursor key to move to the legend number of the curve to which you want to 
lock marker B, and press Enter.
6 Press Close to return to the graph.
How to Unlock Markers from the Curve
You can unlock markers A and B from the curve by performing the following 
instructions:
1 Press the [Menu] softkey. 
2 Move to <Unlock From Curve> and press Enter to return to the graph.
Figure 113 The Lock to Curve Menu