The use of domain-specific languages (DSLs) has become a successful technique in the development of complex systems because it furnishes benefits such as abstraction, separation of concerns, and improvement of productivity. Nowadays, we can find a large variety of DSLs providing support in various domains. However, the construction of these languages is an expensive task. Language designers are intended to invest an important amount of time and effort in the definition of formal specifications and tooling for the DSLs that tackle the requirements of their companies. The construction of DSLs becomes even more challenging in multi-domain companies that provide several products. In this context, DSLs should be often adapted to diverse applicat...