EXFO iOLM - Manual (Page 40)

Setting User Preferences
34 iOLM
Naming iOLM Files Automatically
Consider the figure below as an example of autonaming feature.
You can find the above window at Test Config. > Manage > Modify >
Identifiers tab.
In the figure above, you can modify the identifiers, start, stop, and step
values and enable the auto increment of the identifier values. See
Modifying Identifiers on page 52 for more details on how to specify the
start, stop, and step values.
You can select the number of digits displayed for the incremented or
decremented values.
Select "#" if you want to keep the value exactly in the same format as
defined in the start and stop values. If a value is to be incremented from 1
to 10, it becomes 1, 2, 3, ... 9, 10. One "#" is the default format.