Thank you for reply! I tried your suggestion, and this is not the thing I need.....
Unfortunately I cann't find detaild description of modules in different variants of HikaShop and extensions. So may be somebody can help me to find the following:
Module displaing simple list of products of a category mantioned in backend properties of this module. For each product code, name, price, quantity field and add to cart button have to be displaied. Products don't have any options, sizes, colors, etc. Visitor fills quantity field and press add button. Choosen product is putting to the cart immideatelly without redirecting to any other page.
And again beforehand thanks!