You can adapt the QuickBPM interface to your needs using widgets.
A widget is an interface element or a small service application with specific functionality for solving such tasks as loading a file, displaying instructions, activity streams, a list of users, etc.
Widgets can be used:
to customize the forms of a business process task, start event or app item. For more information on this topic, see Widgets on Forms.
The following form is set up using widgets. On the side panel, there are widgets that display the status of the app item and activity stream. On the main area of the form, we added an additional tab and a text block with instructions.