How to traverse back from a subtask

Hello supporters,

i am working on a collaboration model. The model is not checked out.

The Prozess contains a subtask.

When i open the subtask with a double click, how can i traverse back to the subtask of the superior process?

The only way i found, is the tabbar down the menu. But i must know the superior prozess and look for the subtask again.

Best Regards,

Josef Springer