In the 2d view on the menu entry Graph/Edit the graph to display can be selected. This feature has some issues!! Therefore the first entry should always be topology. Moreover in the source in the settings of the topology only project, meta and custom are useful: - project shows the simulation graph of your model - meta shows the meta graph of your simulation, in this graph objects added to the simulation are shown (e.g. the instances of the rgg files). - custom shows the graph of the below the root with the name given by customKey. This feature is only interesting if multiple roots are used in the simulation.