The language definition file Profile category can contain Stereotypes, Extended attributes, Methods and so on, to extend the metaclasses defined in the PowerDesigner metamodel.
In object languages, the Shared/Extended Attribute Types category contains various attributes used to control object language support within PowerDesigner. The Object Container variable specifies the default container for implementing associations. This attribute has an editable list of possible values for each object language, from which you can select a default value for your language. You can, if necessary, override this default using the Default association container model option.
For detailed information about working with the Profile category, see Extension Files.