This does not sound like a programming question, but here goes:
You most likely want to use the Footnote system (Insert | Footnote).
However, if you have to use footers then your options are:
- Section 1 has one page and no footers set. Section 2 has 1 page with a primary footer set. The remaining pages are in section 3.
- Pages 1 and 2 are in section 1 which has different first page header/footer turned on. The footer for page 2 is in the primary footer of section 1. The remaining pages go in section 2. You will need to turn off "Same as previous" for the footer in section 2.