Problems with setting stage angle

I am creating a flash movie that requires multiple perspective angles. A good example is during the intro I have rotating cubes which have a 1 degree perspective angle. Yet later this changes to a 30 degrees. I can’t seem to keyframe this adjustment.

The only code I could find was:

document.setStageViewAngle()

In the adobe documentation it references the example…

fl.getDocumentDOM().setStageViewAngle(70);

Sadly I can’t get this to work… In fact I can’t get flash to even recognise that it is a function.

Is this the correct code? or is there a way of keyframing the adjustment?

Many thanks