Defining exact pdf media box when exporting a pdf...

[motormount]

 Sorry i've been more than busy the last couple of days, in the first post i was writing ''it's not really important'' and if you have pitstop or pdf toolbox you can work around it.
I was asking mainly out of curiosity, and the doubt that is somewhere hidden in the menu's and i couldn't find it...
Giving an example of where it can be useful is like writing a tutorial, what i wrote earlier

''Like i said it's not really important, it's when i want to ''move'' the trim box keeping the media box intact for some reason, the round 10 makes calculations easier!''

sums up in a nice vague way :-P

Thanks all for posting!