Device and method for performing a functionality

A mobile unit (MU), comprising:

• a display device configured to show first image data indicative of a first view shown thereon, the first view including a plurality of selectable elements, each selectable element configured to execute a predefined functionality, the first image data including first position data and first orientation data for each of the selectable elements;
• a processor configured to generate the first image data, the processor further configured to execute the predefined functionality;
• a memory storing the first image data;
• and
• an image sensor configured to generate movement data indicative of a movement of the display device relative to an external physical feature viewed by the image sensor of the MU, wherein the processor is configured to generate second image data indicative of a second view shown on the display device as a function of the first image data and the movement data, the second view including at least one of the selectable elements, the second image data including second position data and second orientation data for each of the at least one of the selectable elements, the second position data and the second orientation data remaining the same as the first position data and the first orientation data, respectively, relative to the external physical feature viewed by the image sensor of the MU as the display device is moved, wherein the processor is configured to select one of the at least one of the selectable elements of the second view as a function of the second position data, the second orientation data, and the movement data indicative of the movement of the display device, and wherein the processor is configured to execute the predefined functionality corresponding to the selected one of the selectable elements,
• wherein,
• in response to a translational movement of the MU, the second position data is maintained the same as the first position data relative to the external physical feature viewed by the image sensor of the MU by determining at least one of a portion of the first view, including a first subset of the plurality of selectable elements, to be removed from the second view and a further view, including a second subset of the plurality of selectable elements, to be added to the first view as part of the second view.