In a situation where, for instance, a user creates a new news_item content under a news content that already has several items of the news_item type (or any other type, for that matter), the new content will be added to the bottom of the already existing volume of news_item content.
However, after adding several dozens of content-items, it's pretty annoying for the user to scroll all the way down to find the most recent item (and then often reorder it to get it all the way to the top).
Is there a setting somewhere that you can manipulate in order to make Sulu add new content to the top instead of to the bottom of an existing body of content?
I am sorry to say that this is currently not possible... Except you try to override some behavior, but I don't think that can be done in a reasonable amount of time...