Repeating footnote citation - short form issue

Hello to everybody,

i allready searched the board, but i didn’t found an answer. I use the short form, for repeating citation in foodnotes and here is my problem:

when inserting a citation for the first time e.g on page 8, it will use the long form. inserting the next citation of the same book e.g on page 9 it will use the short form. after a while, i notice, that i forgot a citation of the book on page 7. when i’m now insert the citation on page 7, it will be short form, but it should be long form, and change the citation automatically from long  to short form on page 8.Is this possible in endnote?

i hope my problem is understandable, my english is not the best.