How Auto Play works
If the slot machine you’re playing has an Auto Play feature, the Auto Play button will typically be located on the right-hand side of your screen. To set it up, you need to choose how many automated spins you want, on how any paylines, and how much you want to play for etc. Once activated, you can sit back and relax and watch the machine do the spinning work for you, showing the results of each spin before moving onto the next.
With some slots, you will also be able to program the game to stop should you win / lose beyond a certain amount. The reason for this is to protect you from blowing your bankroll when lady luck is not your friend, but also to help you hold onto your winnings instead of watching it slip away when your luck suddenly turns.
At any time during your game, you have the right to de-activate this feature. It is your money after all, so you remain in control.