What you would need to do is to insert your round bullets before (or after) each endnote reference, then change the endnote reference Style font to hidden.

Why you'd want to actually do as you describe defies logic, IMHO, as there'd then be no way of telling which endnote reference in the document correlates with an entry in the endnotes.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]