Pinch in or tap and hold on home screen to go to wallpaper/widget etc. Select wallpaper. There choose gallery.... In gallery go to album from where you want wallpapers to be rotated as "multi pack" and it will let you select multiple images. Then will allow you to set as loc screen wallpaper. These will rotate each time you wake up your phone. I have done this and enjoying my own custom "multi-pack".
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