Get the ODF element which can have
as child element directly according to ODF specification. This Element
will help to find the position to insert a new Table. For example,
element is usable with <office:text> element, so TextDocument will return
OfficeTextElement. While Presentation Notes is an indirectly
TableContainer, which holds Table with the help of its grand-child
element <draw:text-box>, so for Notes, DrawTextBoxElement should be
- container element which can hold <text:table>.