Multilevel Modelling is a powerful paradigm that can improve the waywe create and use models. The community and approaches related to Multilevel Modelling have been constantly growing, and the need to agree on some basic concepts, semantics and vocabulary has become paramount. In this paper, we present a tool that can provide empirical data and practical instrumentation to aid in the discussion of the foundational concepts of the paradigm. We outline the structure, modules and applications of the tool in detail, and explain how they can be employed for different tasks that can benefit the Multilevel Modelling community. To illustrate these benefits, we also describe several experiments carried out with the tool and their positive results.