Extruding the specific components on the PCB for the 3D visualization?

Hi..

After finishing the PCB board, if we want to view the specific components in the 3D visualization means, how can i extrude the components in the PCB.
In case of PCB is been viewed in 3D view default height is been get extruded, my board the heat sink and transformer height is 22mm.

Can anyone provide the better solution for this problem.

Thanks & Regards

Dhamodharan