This has been in IdeaStation for years now and was on the roadmap but I don't believe exists yet. Creating a component structure in an assembly to drive the way a parts list or drawings are created shouldn't be the driving factor and being able to "unpack" the parts list is a big must. As of now you have to create an individual drawing sheet for each component with sub-components and can never create a top level BOM unless the browser in the design is massive and a mess. I think this is a big detractor from drawings and drawing functionality.