Action views
An action view defines a form item that can trigger an action in the program.
Action views as satellite items
Below is 
        TOOLBAR section defining a toolbar button using the
                close action name. Here no layout tag is used because the toolbar
                item is part of the toolbar graphical object (it will not appear in the form layout
                area):TOOLBAR
  ITEM close (TEXT="Close")
ENDAction views in grid-based container
The position and size of the element is defined with an item tag, while the rendering and
                behavior is defined in the ATTRIBUTES section. Both parts are bound by the name of the
                item tag. The item tag name is local to the .per file and is
                not available at runtime.
The example defines a 
        BUTTON form item, where the item tag name is
"b_close", and the button name (and the action name) is
"close":LAYOUT
GRID
{
  ...
  [b_close     ]
}
END
END
...
ATTRIBUTES
BUTTON b_close: close, TEXT="Close";
ENDAction views in stack-based layout
In a stack-based container, action views are defined as stack items, with the
                attribute defining the rendering and
                behavior:
        LAYOUT
STACK
 GROUP group1 ( TEXT="Customer" )
  ...
  BUTTON print, TEXT="Print Report", IMAGE="printer";
  ...