I decided to make the new Stage non-scrollable by default.
This decision is based on the fact that Unity is a gaming platform, so the majority of stages (eDriven layers multiple stages one on top of another) normally doesn’t have to be scrollable.
However, adding scrollbars will be easy as a pie: you should just wrap the stage content into another component called Scroller.
You can set the horizontal/vertical scroll strategy on the scroller, and the scroller takes care of scrolling its content.
There’s also the ability of add multiple scrollers per scrollable area (“one-to-many”) if needed.
Because of this, the Stage class (also the GUI class and the StageAdapter class) will loose the scrolling properties (ClipContent, AlwayShowHorizontal, AlwayShowVertical).