To differentiate elements from the original ArchiCAD elements, place them onto a separate layer.
Note: You can set ArchiCAD to do this automatically as part of the merge process, using the appropriate control of IFC Translation Setup.
In 3D Views, you can use layer settings to display imported structural and mechanical elements differently from architectural elements. For example, set the 3D View Display mode of architectural layers to Wireframe, while applying Shading mode for all imported element layers.