Lenovo Tab E8 User Manual page 5

To dismiss all notifications, tap CLEAR ALL at the bottom of the Notifications panel.
To open the Quick Settings panel, swipe down from the top of the screen twice.
To close the Quick Settings panel, swipe up from the bottom of the screen.
Force shutdown/reboot
Press and hold the power button for about 10 seconds until the device turns off; press and
hold the power button for about 15 seconds to reboot.