I always get trouble with this problem using MS Word. I cite something in different places in my paper. I use "insert\reference\footnote" to make endnotes. But I want to make some different citation refer to one endnote. How to do that? Word always creates new endnote. I even try to copy the superscript to the places I want to use, but it turns to the next number automatically. Does any one know how to do that? Thanks in advance!