An electronic device includes a display, a timer and computing hardware configured to execute a software product. Execution of the software product results in generating and rendering a graphical user interface on the display with four or more user-selectable graphical objects. Selection of a first user-selectable graphical object at a first spatial position on the graphical user interface and a movement of the selected first user-selectable graphical object along a path towards a second user-selectable graphical object at a second spatial position is detected and a position of the first user-selectable graphical object is exchanged with the position of the second user-selectable graphical object. If, during a predetermined time period, a selection of a third user-selectable graphical object and a movement of the third user-selectable graphical object towards a fourth user-selectable graphical object is detected, the positions of the third and fourth objects is exchanged.