Use Options > Work Environment > Apply Profile > MEP Engineering Profile.
•The Archicad Toolbox is expanded to include the Ductwork, Pipework and Cabling tools.
•MEP-related commands are added to the menu structure.
•The MEP Routing palette is displayed. Show/hide it at Window > Palettes > MEP Routing.
•The MEP Engineering Toolbar provides shortcuts to frequently used MEP commands:
MEP Tools and Commands
MEP Routing Palette and MEP Engineering Toolbar