If your German is good enough or you can rely on something like Google Translate, go over to Gerald Singelmanns' Blog "indesign-faq" where you can find a script for scaling effects and a discussion when and if an effect gets scaled. it's about CS3 and CS4, so test with caution:
The discussion "Scaling Effects, an Update":
Thank you so much for the tip.
But because the work PC, I assume that even if it will work with CS6, probably not to Windows 7 64bit.
Yet it is a pity that even if Adobe knows about this matter (Czech Adobe support told me that it will be fixed in version CS6), added to set a check box "resize effects when changing size", as in the "Changing adjust the size of the thickness of the stroke "
It should work with your CS3 version on Windows 7 64bit.
The only thing is that I had no time to test it with InDesign CS6.
Ok . I took a little time to make a quick test with InDesign CS6: the script is working…
So go ahead and try for yourself…
it looks like it works.
(Czech Adobe support told me that it will be fixed in version CS6), added to set a check box "resize effects when changing size", as in the "Changing adjust the size of the thickness of the stroke "
Not in my version of CS6... :-(
In my version of CS6 not. I just wrote that promise, but unfortunately failed. (That's why I founded this discussion.