Defines a stack area to group other layout elements together, in a stack-based
        layout.
Syntax
  GROUP [identifier] [ ( attribute-list ) ]
  stack-item
  [...] 
END
 
- identifier defines the name of the element.
 
- attribute-list defines the aspect and behavior of the form item.
 
- stack-item is child element in the stack container.
 
  
Can hold
BUTTON, 
BUTTONEDIT,
            
CHECKBOX, 
COMBOBOX,
            
DATEEDIT, 
DATETIMEEDIT,
            
EDIT,
            
IMAGE,
            
LABEL,
            
PROGRESSBAR, 
PHANTOM, 
SLIDER, 
SPINEDIT,
TEXTEDIT,
            
TIMEEDIT, 
RADIOGROUP, 
WEBCOMPONENT.
 
Usage
 Use a GROUP stack layout element to group other stack items together.
            For more details about this item type, see GROUP item type.
 
Example
GROUP group1 (TEXT="Customer info")
   EDIT ...
   BUTTONEDIT ...
   ...
END