If by does not exist you mean does not work, this is probably because you are using WordPress default blog page that renders all weaver options inactive.
In Settings > Reading, make sure Front page is set to static, and make sure that NOTHING is selected in the post page drop down list (showing –select–)
Then you simply create your post page with a static page using the “page with posts” template, and all the Xtreme options for this page will work.
In the future, as this forum is not monitored, please use the official weaver forum below
http://forum.weavertheme.com/
