In diagrams of the Enterprise BPMN collaboration diagram type, you can assign multiple models to a Call activity object. The objects of the assigned processes cannot be depicted if multiple enterprise BPMN collaboration diagrams are assigned. The lock symbol is displayed instead.
You can collapse a call activity.
Procedure
The symbol is changed accordingly. A diagram that has the same name as the call activity and represents the actual Enterprise BPMN collaboration diagram is assigned to this call activity. You can edit this assigned diagram.
Tip
You can collapse an object of the Call activity type by clicking the symbol Collapse.