Lenovo Tab M8 HD User Manual page 5

Creating new user accounts:
Tap Settings >Users & accounts > Add account to create user accounts.
Parental control:
Set up parental controls
Tap Settinge＞Digital Wellbeing&parental controls＞Parental controls.
Force shutdown/reboot
Press and hold the Power button for about 12 seconds until the device turns off, press and hold the
Power button for about 12 seconds to reboot.