I'm sure I remember finding a way to have my feature tree display the material assigned to each part in an assembly. It was another column, I think.
I can't find out how to do it now, though. Is there a way?
I would like an easy, visual way of ensuring that the mass properties of an assembly are approximately correct. If I can see that one or more parts does not have a material assigned, I can see that the mass properties of that part and thus the whole assembly will be incorrect.
In Pro/E, I used to have the density of each part shown in a column. It achieves the same end, but happened to be simpler to implement than material, for some reason.