Asus T90 Chi E-Manual page 54

Launching the Charms bar
NOTE: When called out, the Charms bar initially appears as a set of
white icons. The image above shows how the Charms bar looks like once
activated.
Use your ASUS Tablet's touch screen panel, external mouse/touchpad,
or keyboard to launch the Charms bar.
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Swipe from the right edge of the screen to launch the
charms bar.
Move your mouse pointer on the upper or lower right
corner of the screen.
Press
ASUS Tablet and ASUS Mobile Dock E-Manual