1. A method for actuating objects in a manipulator system by means of a portable end device, wherein the portable end device includes a camera, a device control unit and a rendering device, wherein the device control unit performs the steps of: acquiring an image, by means of the camera in the portable end device, imaging at least a portion of the manipulator system; obtaining access to reference data sets for at least the manipulator system wherein reference data sets include camera image data of at least the portion of the manipulator system; identifying at least one feature of the manipulator system by performing an image recognition process using the camera image and the reference data sets, wherein the at least one feature comprises a visible aspect of the manipulator system that is apparent in the acquired camera image and characteristic of the manipulator system or an actuatable object of the manipulator system; classifying the imaged manipulator system based on the at least one characteristic feature; displaying the acquired camera image of the manipulator system on the rendering device of the portable end device; identifying the at least one actuatable object of the manipulator system based on the at least one characteristic feature and the reference data sets for the identified manipulator system; rendering an optical marking the camera image diplayed on the rendering device of the portable end device, the optical marking indicating the at least :one actuatable object of the manipulator system; and actuating the actuatable object of the manipulator system upon receiving an input via a user interface of the portable end device to select the optical marking.