1. A computer implemented method comprising: identifying a host setting related to a property of a document data structure and a property of a fragment data structure, the document data structure reflecting an organization of a document that includes a reference to the fragment data structure separate from the document, and the fragment data structure reflecting an organization of a portion of the document; retrieving the fragment data structure that is separate from the document; and overriding the property of the fragment data structure using the property of the document data structure, if the host setting includes a command that the property of the fragment data structure is to be overridden by the property of the document data structure.
3. The computer implemented method of claim 1 , further comprising building a final document using the property of the document data structure.