A computer-implemented method of processing a document provides a user with a plurality of nested test modes for creating, reviewing and retrieving a plurality of different document configurations represented by different document data sets. The nested test modes are activated upon user request and a starting data set of the document is stored on a memory and restored after leaving the test mode. By nesting a plurality of test modes, the user can create a plurality of different configurations of a document and easily retrieve the data of every one of these configurations.