| Add(Change) | Adds a Change object to the content. |
| Add(ChangeEnd) | Adds a ChangeEnd object to the content. |
| Add(ChangeStart) | Adds a ChangeStart object to the content. |
| Add(Heading) | Adds a Heading object to the content. |
| Add(IndexOfIllustrations) | Adds a IndexOfIllustrations object to the content. |
| Add(ITextContent) | Adds a ITextContent object to the content. |
| Add(List) | Adds a List object to the content. |
| Add(Paragraph) | Adds a Paragraph object to the content. |
| Add(Section) | Adds a Section object to the content. |
| Add(Shape) | Adds a Shape object to the content. |
| Add(Table) | Adds a Table object to the content. |
| Add(TableOfContents) | Adds a TableOfContents object to the content. |