Resizing Primitive Objects in as3

hello again Lords and Ladies,

i was experimenting primitive objects in flash cs3 and i wonder if there is a way to change the properties of a primitive object. sadly it’s a shape therefore it doesn’t carry instance names. i tried to put it in a movieclip and resized the movie clip but it scales normally, i just thought i need to scale it but the round corners(for a rectangle for example) stays it’s dimensions. scale9 would be a solution, i hope you guys know a much more convenient way.