disabling layer 2 x-ray reaction

[Mettyk25jigsaw]

Does anyone know of a way of disabling layer 2 x-ray reaction so that when the x-ray is activated, layer 2 still shows and does not disappear? you know, how once the x-ray is turned on, by default everything in layer 2 is not showing, anyway of reversing that...
     This would be just as good as by my previous engine works topic, but would be approaching it differently. So instead of showing missile tiles etc but not hidden passages, I can have layer 2 show instead while xraying...
     Sorry if I have annoyed anyone by starting a new thread, rather than re-continuing on the previous one, it's been a week or so since someone has posted on it and thought not so many people would read it.