How do I make the footers different on every page on Microsoft Word?

I am having the same issue; I have several typed pages and I need them all to have separate footers. NOT footnotes; I understand the difference. The problem I am having is with pagination. I need each page to have a page number (footer) totally unrelated to the other pages ; for instance, one page needs to be p. 16, another p. 16a, and another p. 45, etc. I want these numbers to appear exactly where page numbers appear, because that's what they are. This is a unique situation; I am making revisions to and replacing only certain pages of a large course packet because any and all electronic copies are gone (the most current Adobe cannot handle such a large document; days of trouble-shooting have already been expended). The new edits cannot adjust the pagination of the document as a whole or the entire thing will require retyping. I have inserted page breaks at the end of each page; I can see them when I show paragraph marks. However, when I insert a footer to one page it is still uniform to all pages. It is frustrating to me that there seems to be no function for totally independent pagination. Any help is much appreciated; I don't want to have to save each page as a separate document. Thank you!

Here is more on the StyleRef Field. While there may be good reasons to have a section break, changing the footer to reflect the current chapter is not one of them.

If Argument 1 and Argument 2 and so on are in the document body, you don't need any section breaks: you can use the STYLEREF field to pick up the text.