Use Customized to create your own Power Saver settings.
Note: The user interface of Power Saver may vary with models and/or versions. To check your Power Saver's version, tap and hold from the All apps screen then drag it to App info on the top of the Home screen.
To customize a Power Saver setting:
From the Power Saver main screen, tick Customized then tap > on the right side.
From the Customized screen, customize the settings of the CPU, Brightness, and Network.
To enable/disable Extend standby for the apps, move the Extend standby slider to ON then select the apps that you want to enable/disable. This step allows your device to save battery life.