03-14-2019 04:39 AM - edited 03-14-2019 04:41 AM
Following mharkins earlier reply,
Blocking notifications during game will help block annoying calls and messages when you are playing, but the on/off button you are looking at is really just this :
>> Additional Features / Auto Screen Lock
Took me 10 mins of messing around, because it killed my excitement 5 mins into the game and this pops up.