Flatten specific cross references

[nielsgeode]

In my PhD thesis I have cross references to sections, tables, figures etc. For references I use the endnote function in word and a cross reference to an endnote number if I want to add the same references on a different (second) place in the document.

Because 7,8,9 needs to be changed to 7-9 (as an example), I have flatten the endnotes with a macro script and then manually changed these numbers. Problem is however, that cross references to endnotes change to "Error! Bookmark not defined." Of course, I have made a backup copy of the entire manuscript just before I changed the endnotes to flat text so I will need to grab that version and start again from that one.

To overcome this, I could do CTRL+A and then CTRL+SHIFT+F9 to flatten all cross references. However, I do like the fact that in the PDF (which will be published as well), the links to tables, figures sections are clickable.

How can I only flatten the cross references to endnotes and not to figures, tables etc.? I could do it manually, but it's a 300 page document with 400 cross ref's to endnote numbers...