Actor with many mesh in c++

i m sorry but i have a question that i tried to found on this section without success, i m porting my simulation car on ue4 and i would to define my actor car with many static mesh ( bonnet,doors,ecc…) How can I attach the mesh together?

Thanks for your response, i already export fbx for any mesh from 3dstudio, so i need to attach togheter all ,and control only actor position.

Please use comments from now on, it is better organized using it.

As I said, advise help documentations to understand how to group you meshes together into one mesh.