In Indesign, you have the ability to lock consistent page elements into place, instead of repositioning them over and over again as pages are added. This process is done through creating a master page. Master pages are an important, time-saving tool in booklet creation to maintain consistency.
However, there may come a time when you want to override a master page element. Doing so is simple. Just press [Ctrl][Shift] (Windows) ([command][shift] on the Mac) and click the page element you wish to release from the master. Now, you can edit that page element any way you like.