The Control Panel gathers all the most commonly used settings in the Look Dev Views menu, for easy and fast access.
In Split-screen and Zone mode, all properties are synchronized between the two views by default. Use the lock button (highlighted in the image below) to make a property independent and applied only to the selected view (indicated by the blue or orange border around the border of the view).
Properties in the Control Panel that only apply to one window are highlighted in the color of the selected view for further clarity.