Asus ZenScreen Touch MB16AMT 15.6" 16:9 Multi-Touch IPS Monitor - Manual (Page 16)

2-6 Chapter 2: Setup
ZenScreen Touch
Finger slide (on Windows 7/8/8.1/10 only)
Slide your finger to scroll up and down and slide your finger to pan the
screen left or right.
ZenScreen Touch
Zoom out
Bring together your two fingers on the touch panel.
ZenScreen Touch
Zoom in
Spread apart your two fingers on the touch panel.