Two questions about T3D fileformat

A) is there any way to merge contents of an T3D using the editor? I mean if I manage to create my own T3D files its a same that importing it replaces all the scene.

B) is there any way to save/import materials from T3D?

Obviously my intention is to create a scene translator and t3d sounds like a friendly fileformat (+fbx for meshes).

Thanks in advance