Tony Clark and Ulrich Frank gave a talk at this year's PoEM, which took place from Nov. 28th to Dec . 1st in Vienna. Based on a description of the reflexive, multi-level language architecture, Ulrich Frank demonstrated the latest version of XModeler^ML and showed, among other things, how the creation and use of UML class diagrams in teaching can be significantly enhanced by XModeler^ML. Tony presented XEditor, a textual editor for creating multi-level models and programs that allows to enrich code with graphical representations. The corresponding paper is available here.