EXFO FTB-2 - Manual (Page 58)

Getting Started with Your Unit
48 FTB-2 and FTB-2 Pro
Working with Windows 8.1 Pro or Windows Embedded 8 Standard

Swipe down: To close windows that do not have a close button.
From the top edge of the screen, swipe towards the bottom.
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Swipe left: To display the Charm bar, which is a special toolbar that
gives you access to many tools and settings.
From the right edge of the screen, swipe towards the left.