Oppo How to Enable or Disable One-handed mode

Larger smartphones such as Oppo's can hardly be operated with one hand, but if this is necessary, Oppo's smartphone can be set to one-handed mode, in which the screen content is reduced in size and displayed in a "window". This window can be pinned to the left or right edge of the screen.

Note: The one-handed mode on the Oppo-Smartphone can only be reached via the quick settings. It may be necessary to add the button first.