insert page number in existing footnote without instant formatting

Hi 

I have a document with lots of footsnotes without the correct page numbers. I have instant formatting off but that only works for new footnotes, Is it possible to insert page numbers in existing references without formatting the whole document? 

/K

From the Endnote built-in “Help” manual (go to the Endnote Toolbar and select Help >Search for Help):

To manually include specific page numbers to a reference in an unformatted footnote citation, enter the page number preceded by “@” at the end of the temporary citation:

{Smith, 1999 #24 @145-6}