mlegs:
From the Favorites palette, click on the small triangle at the upper right corner, with options to Save Favorites... and Load Favorites... which allows you to transfer Favorites between files. For more information with images, go to Help > ArchiCAD Help, when your browser opens click on the "Search" tab, and input "Favorites" in the search box, in the results list "Favorites Palette" will lead to detailed information.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David