HP 54620A User's And Service Manual page 64

Making Analyzer Measurements
To define a new label
Label Assignment Auto-Increment Features
When you assign a label ending in a digit, such as ADDR0 or DATA0, the
analyzer automatically increments the digit and displays the modified label in the
entry field. Then, the analyzer changes the selected channel to the next channel
down on the display that is on. This makes it easier to assign successive labels
to numbered control lines and data bus lines.
Label List Management
The label list contains 75 of the most recently used labels. The list does not save
duplicate labels, nor does it save multiple labels that differ by, at most, two
trailing numeric characters.
The label list is non-volatile. Thus, after you use the label list for awhile, your
labels will predominate, making it easier to customize the analyzer display for
your needs.
When you first begin using the analyzer, there are seven blank entries at the
beginning of the label list. As you define custom labels, these spaces are filled.
One blank space is always retained to allow entry of a new label. When you
initialize the label list, all of your custom labels will be cleared, and the label list
will be returned to its factory configuration.
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