MEP-compatible Library Parts (with smart connections for use in duct, pipe and cabling systems) are found in:
•the MEP Library
•the regular Archicad Library
•in the Versatile MEP Library on BIMcomponents
MEP Library
The MEP Library contains specially configured MEP Elements.
MEP-compatible Objects in the Archicad Library
Many familiar elements from the Archicad Library, such as this Basin, include MEP-compatible connection settings, so you can connect them to an MEP route:
Display MEP Connection Ports on Library Parts
1.Go to Document > Model View > Model View Options
2.Open the Miscellaneous Settings for Library Parts panel)
3.Enable the Model View Option for Object MEP Connections.

Model View Option: Show or Hide MEP Connections on Library Parts
Element Type of MEP-compatible Objects: Object or Equipment
By default, MEP-compatible objects from the Archicad Library are placed with the Object Tool and their element type is therefore “Object.”
For a selected MEP object: Switch its type to Equipment (or back to Object) using the context menu commands.