I need to convert a MESH to a POLYFACE MESH in order to have the correct display.

Why am I doing this I have the object nested like this: COGO point(Block(Multiview Block(Block(Mesh))))) When the COGO point is in a 3D model view the MESH is always displayed as wireframe despite the visual style where as the POLYFACE MESH responds to changes in the visualstyle.

Therefore, I need to convert all meshes to polyface meshes. Is this as simple as pulling out the AcDB entry and changing the DXF code in the header???