The Custom presentation form for Process Models can be used with HTML forms to add custom JSP presentations. Like HTML presentations, the presentation of the JSP forms can be edited using an HTML editor that supports JSP tags. In addition, the logic part of the JSP (implemented in Java) can be modified to customize the content of the presentation using any text editor. For example, it is possible to add Java code to populate the content of a drop-down list from a database query.
If you select the Custom option in the Presentation dialog box in the Start or Activity worksteps properties, then Business Process Modeler creates a Java Server Page (JSP) workstep presentation.