Making subclasses overlapping

• Setting the {incomplete, disjoint} constraint back to the default setting of {incomplete, overlapping} will result in the removal of the generalization set, which has the same meaning.
• Starting from MagicDraw 18.3, the Concept Modeling menu is disabled when you right-click a tree or a generalization set on a diagram because the menu options for creating a generalization set have been moved outside the Concept Modeling menu (see Figure 2 example).

Figure 2: The Concept Modeling menu is disabled in MagicDraw.

• Starting from MagicDraw 18.3, the Concept Modeling menu options: Make subclasses complete and Make subclasses disjoint have been replaced with SubclassesComplete and Subclasses Disjoint respectively (see Figure 3). 

Figure 3: The Subclasses Complete and Subclasses Disjoint menu options.

The following describes how the subclass menu options work:

• When you make subclasses complete, there is a check mark before Subclasses Complete. If it is not complete, there is no check mark before the menu item.
• When you make subclasses disjoint, there is a check mark before Subclasses Disjoint. If it is not disjoint, there is no check mark before the menu item.