Hi,
Go in the menu Display>Content modules and edit your module.
There, you have the "ordering direction" and "ordering column" settings. If you select descending and product_created respectively in these options, the products will be ordered based on their creation date in descending order on your module.
You also have the "associated category" setting there. You could select a "featured" unpublished category you would create via the Products>Categories menu and then add as a second category to all the products you would like on that module.
You can see many concrete examples of content modules with the modules already setup by default when you install HikaShop. By default you have: a latest products module, a brands module, a categories on 2 levels module, a categories on 1 level module, a best sellers module, a recently viewed module, a random products module and a best rated products module.
So that's already plenty of examples of how to configure the content module.