You can work on ARDELA code in this editor. This editor can be invoked from a class or an object, and its capability changes accordingly.
Class ARDELA editor
If this was invoked after selecting a class, then the first pane is for non-inherited facts and predicates. The second pane is for inherited facts and predicates. Both affect the selected class only.
Object ARDELA editor
You can enrich objects by writing additional facts about the object you selected.
The first pane contains the code that is specifically for the object on which you selected.
The second pane contains the accumulated ARDELA code for that selected object.