Calling Several Controllers from a View 
Use
With this example, several controllers are called from a view using a BSP element.
Note
There can also be a page in place of the calling controller and view (in the graphic on the left-hand side). There cannot be a page, however, at the level of the called areas (in the graphic on the right-hand side).
With help from the views that are allocated, these controllers provide the contents for a sub-area of the main views. A reference to the model can also be specified with the call.
