EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Manual (Page 100)

Setting Up the Instrument in WDM Mode
92 FTB-5240S/5240BP
Setting Up WDM Analysis Parameters
4. In the Save As window, enter a file name and press Save. The file will
be added to the favorites list in the Analysis setup – Favorites window.
5. If you want to apply the above settings to the active trace, select the
Apply to active trace and re-analyze option and press OK.
6. Press OK to load the configuration and close the window, or press
Cancel to exit without saving.