You cannot directly edit an object of the Subprocess (collapsed) type, but rather the assigned process.
In BPMN, a distinction is made between objects of the Subprocess (expanded) type and objects of the Subprocess (collapsed) type.
Procedure (
)
Open a BPMN diagram with an object of the Subprocess (collapsed) type.
Click this object.
Activate the BPMN tab bar.
Click Activity >
Edit.
You can edit the object of the Subprocess type.
An object of the Subprocess (expanded) type can be collapsed to an object of the Subprocess (collapsed) type. The symbol automatically changes accordingly. If the subprocess is expanded again, the objects are shown, but the assigned model remains unchanged. The subprocess can only be changed using the assigned model.
Tip
You can directly open the assigned process of an object of the Subprocess (collapsed) type for editing by clicking the Edit BPMN subprocess symbol.
The assigned process opens and can be edited.