May be the best way for now is to uncheck Cast Shadows and Check Show Ambient Shadows From Graphic Display Options
And
For what you are asking for, it is considered as a wishlist so I suggest you to login a wishlist via
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=1109794
Alaaeldin Alsahli
Please mark Accept as Solution if your question is answered. Kudos gladly accepted. ⇘