Telling "processing only" from a report

[John Esak]

>     http://www.fptech.com/Products/Docs/FPFormat/screen40.shtml
> 
> At offset 26 is a 16-bit value:
> 
>     128    	Form or Label
>     129    	Report
>     131    	"Other"
>     132    	Screen
>     178    	Processing only format
> 

What is byte 132 used for?  The others ar obvious.

John