An editor application configured for setting up at least one evaluation data structure is described, wherein each evaluation data structure is configured for evaluating a corresponding specific motion pattern in a sequence of image data structures. Each evaluation data structure comprises a ML model artifact configured for determining, based on input data comprising key data elements provided for at least one image data structure, class labels for each image data structure, said class labels identifying at least one of: at least one motion phase of the specific motion pattern, at least one evaluation point of the specific motion pattern. A key data element indicates a respective position of a landmark in the image data structure. Each evaluation data structure further comprises geometric evaluation data for performing a geometric evaluation of a configuration of key data elements of a particular image data structure that corresponds to an evaluation point or for performing a geometric evaluation of at least one motion phase of the specific motion pattern. Each evaluation data structure further comprises feedback data for providing a feedback to the user, said feedback depending on the result of the geometric evaluation. The editor application comprises at least one graphical user interface, the graphical user interface being configured for accepting user input for setting up and editing the geometric evaluation data and the feedback data.