The Expense/income types tab contains the list of categorized expense types. Expense type may be specified in the Expense document. Then, you may get a chart of expenses for any period of time.
To manage categories, select Manage expense categories.
To move selected expense type(s) to a specified category, select Move to category button and select a category.
This list contains few predefined entries: Bank charges, Translation income, Translation expense, Currency difference. It is not possible to delete these entries, but it is possible to rename or move them to another category. These predefined entries are needed to make corresponding transactions in the Balance sheet and Ledger when creating different documents. When creating a new job, a corresponding record must be added to the Ledger, showing amount of the job as income from translation.