EXFO FTB-1 - Manual (Page 69)

Setting Up Your Unit
FTB-1 59
Enabling or Disabling the Touchscreen Right-Click Feature
6. From the Option tab, select the Enable Auto Right Click check box to
enable the option.
OR
Clear the check box if you prefer to disable the right-click.
7. Tap OK to confirm the changes.
8. Tap OK once again to close the touchscreen parameters window.
9. Tap to return to the Mini Toolbox window.