Ouputting different profiles for a Docbook document with Oxygen

[Paul Taylor <paul_t100@fastmail.fm>]

Outputting different profiling output


I want two version of my text, one for Windows and one for Mac.
I know I can attribute os="mac" to sections of my text for mac only 
output, and similar for WIndows
But when I apply my selected transformations I still only get one for 
Xtml and one for html, I want two for both (mac and windows) , what is 
the missing step ?

thanks Paul