Copy layer to another composition

Hi all,

I am trying to import a specific layer from one AE project to another.

I am able to import AE project and find a composition and add it to where I want with:

myComp.layers.add(app.project.item(c).item(e));

But how can i go one level down and target specific layer? I tried:

myComp.layers.add(app.project.item(c).item(e).layer(1));

But i get an error: "[object AVLayer] is not of the correct type".

Thanks for your help,

Martin