How do I customize endnotes to enclose the end note
You don't. You have to do this manually or with a macro.
I would stay with the default. The custom with the brackets probably
originated with typewriters, which didn't have proper superscripts.
Word allows you some exotic numbering formats, especially if you use a
macro:
ActiveDocument.Endnotes.NumberStyle=5 ' 1., 2., 3., ...
ActiveDocument.Endnotes.NumberStyle=18 ' enclosed numbers (up to 20)
ActiveDocument.Endnotes.NumberStyle=22 ' 01, 02, 03, ...
ActiveDocument.Endnotes.NumberStyle=57 ' -1-, -2-, -3-, ...
But no brackets :-(
And putting brackets in as text, they are hard to maintain even if you use
macros to do it.
Regards,
Klaus