Huawei MediaPad M5 Pro Guide De Démarrage Rapide page 8

Upper function button
To clear pictures that you draw, press and hold the upper function
button, and brush over the pictures with your M-Pen.
This function only works with supporting apps.
Lower function button
To take a screenshot, press and hold the lower function button, and
l
draw an enclosed circle on the device screen with your M-Pen.
To capture a full screen, press and hold the lower function button, and
l
tap the device screen twice with your M-Pen.
To take a scrolling screenshot, press and hold the lower function
l
button, and draw the letter S with your M-Pen while scrolling down
the device screen. Tap the scrolling area with your pen to complete the
screenshot.
To enter a feature app, press and hold the lower function button, and
l
tap the device screen with your M-Pen to display the floating menu
with feature apps.
In Desktop mode, taking screenshots and displaying the floating
menu with your M-Pen are not supported.
4