Arrangement comprising a watercraft and a system, wherein the watercraft comprises - a display and operating unit and - a computer unit, wherein the system comprises a plurality of components, each of which is alterable by means of at least one action, wherein the display and operating unit comprises - a representation screen, and - a selection device, wherein the computer unit is configured to control the display and operating unit so that the controlled display and operating unit displays a representation of the system on the representation screen in such a way that the displayed representation shows at least one alterable component of the system, wherein the selection device is configured to enable a user to select an alterable component shown in the representation, and wherein the display and operating unit is configured to detect a selection of a component shown in the representation and also a selection of an action on the selected component by a user, wherein the display and operating unit comprises a further screen, which is spatially separate from the representation screen, wherein the further screen comprises a plurality of touch-sensitive regions, characterized in that the computer unit is configured - after selection of a component to automatically determine those actions which are able to be executed on the selected component, and - to assign at least one determined action to a touch-sensitive region of the further screen, wherein the computer unit is furthermore configured to control the display and operating unit so that each touch-sensitive region to which a determined action is assigned shows a designation of this assigned action, wherein the display and operating unit is furthermore configured to detect a selection of a touch-sensitive region showing a designation of an assigned action by a user, and wherein the computer unit is furthermore configured to trigger the execution of the action assigned to the selected region on the selected component. - a display and operating unit and - a computer unit, wherein the system comprises a plurality of components, each of which is alterable by means of at least one action, wherein the display and operating unit comprises wherein the system comprises a plurality of components, each of which is alterable by means of at least one action, wherein the display and operating unit comprises - a representation screen, and - a selection device, wherein the computer unit is configured to control the display and operating unit so that the controlled display and operating unit displays a representation of the system on the representation screen in such a way that the displayed representation shows at least one alterable component of the system, wherein the selection device is configured to enable a user to select an alterable component shown in the representation, and wherein the display and operating unit is configured to detect a selection of a component shown in the representation and also a selection of an action on the selected component by a user, wherein the display and operating unit comprises a further screen, which is spatially separate from the representation screen, wherein the further screen comprises a plurality of touch-sensitive regions, characterized in that the computer unit is configured wherein the computer unit is configured to control the display and operating unit so that the controlled display and operating unit displays a representation of the system on the representation screen in such a way that the displayed representation shows at least one alterable component of the system, wherein the selection device is configured to enable a user to select an alterable component shown in the representation, and wherein the display and operating unit is configured to detect a selection of a component shown in the representation and also a selection of an action on the selected component by a user, wherein the display and operating unit comprises a further screen, which is spatially separate from the representation screen, wherein the further screen comprises a plurality of touch-sensitive regions, characterized in that the computer unit is configured - after selection of a component to automatically determine those actions which are able to be executed on the selected component, and - to assign at least one determined action to a touch-sensitive region of the further screen, wherein the computer unit is furthermore configured to control the display and operating unit so that each touch-sensitive region to which a determined action is assigned shows a designation of this assigned action, wherein the display and operating unit is furthermore configured to detect a selection of a touch-sensitive region showing a designation of an assigned action by a user, and wherein the computer unit is furthermore configured to trigger the execution of the action assigned to the selected region on the selected component. wherein the computer unit is furthermore configured to control the display and operating unit so that each touch-sensitive region to which a determined action is assigned shows a designation of this assigned action, wherein the display and operating unit is furthermore configured to detect a selection of a touch-sensitive region showing a designation of an assigned action by a user, and wherein the computer unit is furthermore configured to trigger the execution of the action assigned to the selected region on the selected component.