Open sale products from category
https://discuss.tryton.org/t/export-sold-products-with-sale-price-and-available-quantity/5584
Creating customers' catalogues is a continuous task for an entrepreneur, and it's very common that there are different price sets for different customer groups. In GER it's very common you have reseller prices and consumer prices, you may have different prices for different countries - and in my small business, I have consumer prices and cooperation partner prices.
It's a little amazing that Tryton does not have a standard procedure, including generation of nicely designed "reports" on that purpose. The desired feature needs to talk with "price lists", so different catalogues for different customers' groups can be created with ease.
To my limited understanding, the "price list" section is the obvious location to place the feature, but it may be suitable in "sales" as well. In sales>products, there already is a "price list" box, but an entry there does not change prices. So an entry in the "price list" box which would change the display result, and a report feature would do the trick.