Reversing Major/Minor Orientation
After creation of a MetaAssociation, major/minor orientation can be reversed in the metamodel diagram by opening the Properties window of each MetaAssociationEnd.
To modify MetaAssociation orientation:
1. In the Properties window of the major MetaAssociationEnd, select the Characteristics tab, then the Advanced subtab.
2. Clear the Major check box.
3. Open the properties of the minor MetaAssociation End and select the Major tab.