How to toggle Attachment annotation scale?

Hi all,

I am making a lot of sheet setups, with varying scaled references. I have text elements with information in my model.
Using the reference dialog manual toggles, I can activate the "Use Active Annotation Scale" to get the text to display at precisely the correct scale regardless of the reference scale. That is Awesome!

How do I toggle the "Use Annotation scale" on a reference? (using vba obviously)

Thanks,
Torben