[Typo3] How to configure the content type 'sitemap' in the mode 'updated'

[tapio]

Hi

It is possible to build your own sitemap, but
how to configure the default sitemap

http://www.typo3.net/tsref/cobject/hmenu/

has examples defining menus

I would like to put this kinds of setting for the default sitemap, when 
it is in the mode 'updated'

temp.menu_1 = HMENU
temp.menu_1.special = updated
temp.menu_1.special.value = 488
temp.menu_1.special {
mode = manual
depth = 4
maxAge = 3600*24*3
limit = 8
}

But I didn't find documentation to do that.