Thanks for the suggestion, Christiaan.
Firstly, we need all feature requests to be in English, sorry. Although this isn’t ideal for people whose native language isn’t English, it ensures that there is consistency and maintainability in the Breww feature requests section. The community platform does allow posts to be translated (use the globe icon below a post), which you might find helpful.
If I’ve understood your request correctly, I believe it would be covered by Recipe-level variables for Calculated Fields, e.g. allow "Add ingredient" quantity to be the result of a calculation, so I’d recommend voting for that thread instead.
Thank you.