Teledyne LabMaster 10 Zi Series Operator's Manual page 67

LabMaster 10 Zi Oscilloscopes
to create the label. The first time creating a waveform label, Label1 is
provided as default text when the Add label button is touched.
From this pop-up you can edit existing annotations, change the label
placement on the waveform, add labels, remove labels, and toggle the
visibility. The following bullets show you how.

If you are modifying an existing label, under Labels touch the
label you want to change.
NOTE: If the Channel dialog for the trace you want to annotate is
currently displayed, touch the Label button at the bottom to
display the Trace Annotation setup dialog. You may place a label
anywhere you want on the waveform. Labels are numbered
sequentially according to the order in which they are added, and
not according to their placement on the waveform.

If you want to change the label's text, touch inside the Label Text
field. A pop-up keyboard appears for you to enter your text.
Touch O.K. on the keyboard when you are done. The edited text
automatically appears in the label on the waveform.

Precisely place the label by touching inside the Horizontal Pos.
field and provide a horizontal value, using the pop-up numeric
keypad.
60 LM10Zi-GSM-E Rev A