[Jsfl] Document settings matches default, content, printer, how to ?

Hi,

In a Flash Jsfl script, I want to acceed to to the "Document settings" panel (CTRL+J) and select the "content" checkbox for "matches" which propose: "default", "content", "printer". I've copy/paste in a new scene some items who are bigger than the default document size. And checking this boxe solve my problem, but I don't find any way to do that with Jsfl.

In other word, I want to make my document settings to matches the scene content boundaries. I cannot find another way to do that in Jsfl!

Thanks for your help, tips, ideas.

Maelvon