Adding dropzones to 3D object in Motion

Hi all,

Just started to look at 3D object handling in Motion and immediately stumbled over lots of questions. I have an iPhone 3D model in Motion and it would be nice if I could "project" an image or video on to the screen side of the model, which would follow all movements in 3D. So I figured I just add a dropzone to the object in Motion, but that seems not to be possible. What would be a way to achieve this effect ?  

Motion natively handles UDZ objects, but you can't break down the different parts to texture like that. In mO2 you can, placing an image or video as the texture to part of a 3D model.