UML Modeling Techniques > Instance modeling > Instances > Creating a nested instance in the packages pane
  
Creating a nested instance in the packages pane
An Instance can be nested only when the nested Instance's classifier is a part of the nesting Instance's classifier. For more information, see Overview of instance modeling.
For information about creating nested Instances on an Object Diagram, see Creating nested instances on an object diagram.
To create a nested instance for an instance's classifier's part:
• Drag the Instance that is to be nested to the Instance that is to nest.