EXFO FastReporter 2 - Manual (Page 266)

Working with iOLM files
256 FastReporter 2
Managing Bidirectional iOLM Files
To create a bidirectional iOLM file:
1. If you have not done so already, activate the iOLM bidirectional file
creation option, as explained in Modifying Tolerance and Bidirectional
Settings on page 215.
2. Select two matched iOLM files of opposite directions.
3. Click on Tools > iOLM > Create Bidirectional Files.
4. Select the location where you want to save the bidirectional file.