Business process automation improves organizations’ efficiency to perform work. Single executions of process models, called process instances, are usually executed independently in business process management systems (BPMS). In practice, we can observe examples in which a synchronized execution of groups of instances for certain activities, called batch processing, can lead to an improved performance. Batch regions is a concept to allow batch processing in business processes. This demo presents the implementation of the batch region concept in an open-source BPMN engine. It shows how, with a few extensions only, batch processing is enabled and how the consolidated view of several work items in one user form, leads to an improved work efficiency for users.