You have two options: 1. Use the transmogrifier, a Pro-level feature, to move the page. 2. Open the 2 games in different tabs and copy/paste the page to the new game. Set up the page with the same settings in the new game, then use Ctrl+A, Ctrl+C on a map layer and then Crtl+V on the target page's same map layer. Then use Ctrl+A to select everything on the target map layer and align it to where it is supposed to be.