This page had a list of features and I'm wondering how to active some of them: Windows Phone 8.1 Features | Windows Phone Central
?Double Tap to Power Off
?Live Tiles ? mark as red by swiping from the left over the Tile
?Kid's Corner - Password won't be displayed (bug fix)
?File picker
?Mouse and keyboard support (HID)
?Double Tap to Power Off
?Live Tiles ? mark as red by swiping from the left over the Tile
?Kid's Corner - Password won't be displayed (bug fix)
?File picker
?Mouse and keyboard support (HID)
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