Patent US 7,415,475

Plural versions of an authoring/editing tool for fluid text include both a WYSIWYG editor and a content-driven treetable editor for producing narratives and their behavioral control in a fluid text viewing system environment. The tool includes content-driven treetable visualization and layout mechanisms for authoring and/or editing hypertext narratives, electronic mail threads and other tree-oriented applications. Edit operations are disclosed that permit interactive development and modification of treetables.