It depends :)
If the option buttons are bound to the same data field then changing the
data type of the field or its default value will affect all the radios.
If they are unrelated, I'm afraid you'll have to do it by hand (InfoPath
2007 allows to perform bulk operations on the controls but it's mostly for
the size and alignment).
> I have multiple option buttons on my InfoPath form and I need to change the
> data type and the value for all of them. Is there a way I can change the
> properties for one control and then apply those same changes to other
> controls, without manually changing each one?