Listmania -> Newest ->Topics

Please help me to understand a logic of term “Newest” in Listmania.

Does it mean: “Newest products in this category”?

As a matter of fact I was trying to apply it to a topic/pages but it does not show any new products so I used other options.

It seems that “Newest” can be applied only to objects which contaain products - Home page, Categories.

I found the following thing. When there are more than 1 Listmania-s for pages, when a page is edited these options are shown in the “Listmania” tab. But when I try to select other than first (the first is default) Listmania suddenly cart switches to a strange eidting mode of a new page