The first screen contains a list of products, a button to change the configuration of a
  product cell, a button to go to the selection of product categories, a button to go to 
  general information about the company.

  You can go to it by clicking on the cell with the product on the RetailProduct
  It has a photo of the product, description, quantity, price and manufacturer.
  Two buttons go to the product page on the website and call the seller

  You can select the categories of the desired products by clicking on the cell.
  There is a button to save the selection and back.

  There is general information about the company and the ability to go to social networks
  by clicking on the buttons marked with pictures of these social networks.