Within a section it would be useful to be able to have endnotes on footnotes 
(and possibly footnotes on endnotes). 
 
For example, a section that has endnotes collected at the end and footnotes at 
the bottom of the page should appear like this: 
 
 
main section text main section text main section text main section text  
main section text main section text* main section text main section text  
main section text main section text main section text2 main section text 
... 
_____ 
* This footnote has an endnote1 here. 
 
... 
[at the end of the section] 
 
1 This is the endnote to the footnote 
2 This is the endnote in the main body of the section 
 
 
Note the ordering of the endnotes, the example is derived from a printed book.