Many document elements (like Footer, Header, Note, Comments, etc.) have their own RadDocument instance that serves as their body. These child documents are part of the main RadDocument assigned as the Document of RadRichTextBox.
Currently, to access the child RadDocument elements, you should iterate each different element of the main RadDocument and collect its Body property value.
Add a method to easily collect the child RadDocuments, similar to how the
EnumerateChildrenOfType<T> method works. Currently the EnumerateChildrenOfType<T> method doesn't work for searching RadDocument, so you can consider extending this already existing API.