AS2 help: manipulate properties of multiple items

[marko_as]

The mission: create multiple MCs (see the attachment) of a library item (a
ball) that is linked with a class. At runtime, if user presses "q", ALL
INSTANCES of that ball get bigger; instances get smaller, if user presses "a"

How did i try to solve it: with a for loop i cycle through all the instances
and call an instance method to scale the balls

The question: is there any way of doing this without the loop?? What can i do
to make this process less CPU consuming? Too bad, flash doesen't let (static)
class methods to acces instance properties

Need help!!
Thank you

[kglad]

once all your objects are instantiated flash will need to manipulate each one
individually which is cpu intensive. if your objects are not instantiated,
then you can do manipulation and have that reflected in each instance without
repeated manipulations