Teledyne LeCroy LabMaster 10Zi Getting Started Manual - Manual (Page 167)

LabMaster 10 Zi Oscilloscopes
160 LM10Zi-GSM-E Rev A
Removing a Mask from the Display
Quickly remove a mask by accessing the Qx dialog. On the Load Mask
right-hand dialog, click the Delete button.
Mask testing can be done using an existing mask, or by using a mask
created from your actual waveform, with vertical and horizontal
tolerances that you define. Existing masks can be loaded from a floppy
disk or from a network.
You can set your mask test to be True for waveforms All In, All Out, Any
In, or Any Out. For example, if you select All In, the test becomes False if
even a single waveform falls outside the mask.
Masks that you create from your waveform can be confined to just a
portion of the trace by use of a measure gate. Refer to the Measure
Gate topic in the online Helptopic for more information on how this
feature works.