Teledyne LeCroy PETracer Summit and Summit T2-16 PCIe User Manual - Manual (Page 88)

Chapter 5: Reading CATC Traces Summit User Manual
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Teledyne LeCroy
5.10 Edit or Clear Marker
To change a markers identifier, or clear (delete) the marker:
Step 1 Left-click the Packet field of the desired packet to display a pop-up
menu:
Step 2 Choose Edit Marker and enter a new identifier into the
Edit Marker for Packer # pop-up, or 
Choose Clear Marker. When you choose Clear Marker, the marker is
removed and the red line disappears.