Window.ShowSourceDocuments (Word)

Returns or sets a WdShowSourceDocuments constant that represents how Microsoft Word displays source documents after a compare and merge process. Possible return values are wdShowSourceDocumentsBoth - Shows both original and revised documents, wdShowSourceDocumentsNone - Shows neither the original nor the revised documents for the source document used in a Compare function, wdShowSourceDocumentsOriginal - Shows the original document only, wdShowSourceDocumentsRevised - Shows the revised document only.

ActiveWindow.ShowSourceDocuments = wdShowSourceDocumentsBoth