There is provided an apparatus for performing operation steps of a dialysis process. The apparatus comprises a process controller for controlling the apparatus, monitor process progress of the dialysis process and monitor sensor inputs from sensors of the apparatus, and a user interface, UI, comprising a display, an input device and a UI controller. The UI controller is connected to enable presentation of graphical data on the display. The UI controller is connected to enable user interaction with the graphical data and connected to exchange information with the process controller. The UI controller is configured to represent each of the operation steps by step items. The amount of operation guidance information of an operation step item is selectable by the operator during the dialysis process. A method and computer program are also disclosed.
