We would like to be able to use additional types of annotations on the Process Modeler. We would like to be able to add boxes or rectangles to a process modeler that would reside behind events, gateways, and tasks and would be able to be assigned a color and given a title.

The idea behind this concept is that you could essentially put a rectangle in the process modeler, assign it a color, and give it a title, and then put activities, tasks, etc. on top of it as a way to visually group them together.