Exceptions can't be applied with the "Filling in forms" restrictions. However, if you're using content controls for the text & dropdown inputs, you can simply mark those as Exceptions, too. Although there is a way of leaving portions of a document unprotected when using formfields and "Filling in forms" restrictions, that won't allow you to move or resize the circles.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]