Currently, you can only assign categories to your transactions from the pre-defined category list. 📊
However, we have published our categorisation model online, which gives you a quick overview of all the categories we currently use.
https://feedback.cake.app/forums/924664-open-roadmap-cake/suggestions/39736525-categorization-model
You can also provide feedback on our categorisation model by suggesting new categories. Feel free to take a look and give your feedback.