Building a body out of many others?!?

I want to build up my stadion (will be static) out of many smaller pieces. How should I structure the whole thing regarding Actors and Bodies?

Can I add several meshes to an actor and position them in this actor and give them shapes?

You can use many shapes (one mesh per shape) per Actor yes.

But how can I attach the meshes?

actor = m_pNxScene->createActor("groundActor", NxOgre::SimpleShape(SST_Plane), NxOgre::Pose(pos), "static: yes");

No. Do you even try and compile the code you post?

Look up ShapeGroups and actor->addShape()

Sorry, but I haven't got it yet

I need some more details/hints:

My stadion has to be build up out of a plane for the ground on which there will be two fences for the sides and two goals.

At the end of this building process I want to have one body with which my players and the ball can collide. That's what I want to reach.

Therefore you gave me the hint ShapeGroups but I don't know whether you mean the Container ShapeGroups or just several objects of the class ShapeGroup. In both cases I don't know what to do (or better how to structure it, in other words: where to attach the meshes and to whom...).

A piece of code could also help