Add & Replace Affiliate Links for Amazon plugin helps you to add/update tag parameters in links that follows to amazon.
You can add/update paratemer in posts/pages across the website. It’s also allows you to backup/revert changes made by plugin.
Also, it allows you to see which pages were modified.
BE CAREFUL! MAKE BACKUP BEFORE EACH UPDATE TO SAVE YOU DATA, SO YOU COULD REVERT POSTS STATE THAT WERE UPDATED.