To correct online store on Woocommerce (доработка магазина)

Необходимо сделать работы по доработке интернет магазина. 1. Поправить вывод [login to view URL] чтобы там выводились все категории, не сломав другой функционал. Возможно придется переделать плагин section, который даёт эту ошибку. 2. Написать плагин для корректной обработки товаров в метрах в корзине Woocommerce с выбором количества в метрах и штуках. Должен быть функционал добавление товара и отображения цены как и на странице товара - то есть два поля, пересчитывающие данные. english You must do the work on improvement of the online store. 1. To correct conclusion [login to view URL] to output all the categories without breaking other functionality. You may have to alter the plugin section, which gives this error. 2. To write a plugin for the correct handling of goods in metres in the shopping cart Woocommerce the choice of the number in meters and pieces. Should be the functionality of adding items and display the prices and on the product page - that is, two fields, recalculates the data. On the product page everything is correct, it calculates the size of the tile and right is how many pieces need [login to view URL] But in the basket after sending back wrong. There is no selection fields in meters or in pieces, 10 m steel 1 piece product [login to view URL] Wrong product is added. It is added as 1 item. And it is necessary to add meters and two field pieces and thus give the buyer the ability to add pieces or meters. Here I would like to be able 1. Right to add items to the cart that there was and meters and stuff in quantity. 2. The buyer shall in the basket have the same kind of meters and pieces and if necessary add a product in meters or pieces. 3. Correct working out prices.