[Request] Child mode / Screen Lock

Some apps (like the camera app in android) when viewing a video allow you to “lock” the screen and you have to press the specific button again to unlock it to get the controls back or go back to the home screen. Our 1.5 year old has figured out how to open plex, view his play list, view the video what he wants when it auto starts. however he doesn’t know how to not hold the screen yet so he ends up stopping or doing something else. Thanks!

2021 clean-up: duplicate