In order to be able to arrange and structure your costs clearly, 1Tool creating your own expense categories. To create these, first go to: Settings - Finances - Expense - Expense Categories.
In the following view you have an overview of previously created cost categories and you can also edit them (blue button) or delete them (red button) using the adjacent buttons.
Click on "Add new cost type' to create a new category.
Here you enter the sorting number and the name of your new category and then save it. Click on "Save and create new", you save the new category and can then immediately add another cost type.