Showing or hiding parameters
In UML diagrams, you can show or hide parameters in operations according to the level of detail that you want the classifiers in your diagram to display.
Adding enumeration literals to enumerations
In your UML model, you can add enumeration literals to an enumeration to show the named identifiers that represent the values of the enumeration.
Sorting and filtering enumeration literals
In your UML model, you can reduce the complexity, or increase the abstraction level, of your diagrams by sorting and filtering the display of enumeration literals in enumerations.
Adding signal receptions to classifiers
In your UML model, you can add signal receptions to a classifier to indicate that the classifier is ready to respond to a signal. The signal reception identifies the signal and specifies how the receiving object should respond.