Headers

[Bionic]

Hey Guys, hope everyone is well. I'm hoping to grab the attention of a Word guru to help me solve and big problem i have.My job requires me to fill out a 11 page form in a word document, The header information is the same on most of the pages, a friend of mine was able to set this form up so that all i had to do is fill out the information on the header of the first page and it would auto fill to all the rest. problem was one of the pages, lets say page three has different information to all the rest.
is there a formula to select which pages auto fill in the headers? kind of like when you select certain pages that you want to print.
Sorry if this is confusing, i have difficulties explaining myself at times.