A dialysis system for performing a peritoneal dialysis treatment comprising a cycles set which includes a fill phase, a dwell phase or a drain phase, the system comprising: • a display device comprising a graphical user interface, wherein the graphical user interface is configured to display a plurality of parameters on a setting screen, wherein the setting screen comprises three distinct areas: o a first area configured to depict a first user modifiable parameter related to the fill phase, the dwell phase or the drain phase, ∘ a second area configured to depict a second user modifiable parameter dedicated to the number of cycles, and ∘ a third area configured to depict a third user modifiable parameter dedicated to a dialysate volume or a duration of the treatment, and • a computing device operatively coupled to the display device, wherein the computing device is configured to: ∘ display on the graphical user interface the values of the first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter, ∘ allow a user to modify at least one of first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter; and ∘ when one of said user modifiable parameters has been modified by the user, adjust automatically at least one of the other user modifiable parameters and display the adjustment so that the dialysis system offers an intuitive graphical user interface wherein, once the user has modified a parameter, the computing device is further configured to: • allow modifying of the user modifiable parameter by taking into account of a range of permitted values computed by the system depending on the value of the modified or adjusted parameter. • a display device comprising a graphical user interface, wherein the graphical user interface is configured to display a plurality of parameters on a setting screen, wherein the setting screen comprises three distinct areas: o a first area configured to depict a first user modifiable parameter related to the fill phase, the dwell phase or the drain phase, ∘ a second area configured to depict a second user modifiable parameter dedicated to the number of cycles, and ∘ a third area configured to depict a third user modifiable parameter dedicated to a dialysate volume or a duration of the treatment, and o a first area configured to depict a first user modifiable parameter related to the fill phase, the dwell phase or the drain phase, ∘ a second area configured to depict a second user modifiable parameter dedicated to the number of cycles, and ∘ a third area configured to depict a third user modifiable parameter dedicated to a dialysate volume or a duration of the treatment, and • a computing device operatively coupled to the display device, wherein the computing device is configured to: ∘ display on the graphical user interface the values of the first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter, ∘ allow a user to modify at least one of first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter; and ∘ when one of said user modifiable parameters has been modified by the user, adjust automatically at least one of the other user modifiable parameters and display the adjustment so that the dialysis system offers an intuitive graphical user interface ∘ display on the graphical user interface the values of the first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter, ∘ allow a user to modify at least one of first user modifiable parameter, the second user modifiable parameter and the third user modifiable parameter; and ∘ when one of said user modifiable parameters has been modified by the user, adjust automatically at least one of the other user modifiable parameters and display the adjustment so that the dialysis system offers an intuitive graphical user interface • allow modifying of the user modifiable parameter by taking into account of a range of permitted values computed by the system depending on the value of the modified or adjusted parameter.