Divert standard logic in GUI_STATUS, change a parameter and call it back

Hi all,

I want to divert the gui status standard logic when I click in any button on the ALV screen and CALL THE DEFAULT LOGIC BACK to keep the logic flow.

The real situation is that we have the save layout button and I want to control the access for it. So I want the logic to pass trough my code before goes to the default logic to check if the user has authorization to change the global layout. If it have authorization to save so the default logic would be called.

Is it possible?

Note: The sap gui were copied from STANDARD_FULLSCREEN in Function group SLVC_FULLSCREEN

Thanks,

Andrea