I'm using the "My Objects" folder in the content browser to save constantly-reused content. When I drag a content group in there, it does a "thumbnail render" and stores the object. Most of the time, this generated thumbnail is just fine and all is good. But occasionally, I'd rather the thumbnail "zoom in" on a particular facet of the object being saved, such as a face of a character being saved. The preview doesn't seem tied to any of the camera views in the scene I'm dragging the object from. How do you either a) change or override the thumbnail for that object, or b) indicate the view you want to show in the thumbnail?