Apply styles by group/component instead of global

[Wainiha]

Would be really great to apply a "sketchy" style to a portion of a model that one wishes to de-emphasize and use a different style for the primary focus of the model. For example, I want to focus only on a roof system design so would have that part in "Engineering" style and the remainder of the building below (which is irrelevant) in a sketchy, freehand style.

P.S. Example attached; created by hiding the roof, applying "Sketchy" pencil style, take screen snapshot, then hide containers and un-hide roof, apply "Engineering" style to roof - and make a composite of the two in Photoshop:
![mixed styles: Engineering and "Sketchy" pencil](/uploads/imported_attachments/lATM_sketch.gif "mixed styles: Engineering and "Sketchy" pencil")