In order to configure the user-interface to provide this level of functionality, set the RAPInterface riNotebookTab property to True and set all of the RAPOptions to True. When the report designer is displayed, the Calc tab will be visible. By right-clicking on the treeview on the left, a speed menu will be displayed that shows the different views of calculations available:
This view shows the report and all of the objects within it. An event handler can be coded for any object.