Here is helpful, structured content about (now known as Archicad, with the MEP Modeler as a built-in feature or add-on depending on the version). What is MEP Modeler for Archicad? MEP Modeler is a specialized add-on (now integrated into the Archicad Solo or Graphisoft BIMx Pro workflows, and fully available in Archicad 26+ as a core feature) that allows architects and engineers to model, coordinate, and manage Mechanical, Electrical, and Plumbing (MEP) systems directly within the Archicad BIM environment.