Object wizard behavior when a default choice is deleted

If you remove a default Choice from a Choice Group, the topmost Choice automatically becomes the new default, unless you explicitly select a different one. The new default propagates to child objects (templates and instances).

You cannot delete a Choice if there are only two Choices in the Choice Group; you must delete the entire Choice Group (a Choice Group, by definition, must contain at least two Choices). In this case, any associated attributes or graphics that were associated with the deleted Choice Group become a part of the object; they no longer have an association with the Object Wizard. Attributes and graphics that are not associated with the Object Wizard are not trimmed from derived instances.