Is it possible to change the order of the publications on my GalleryPage?

The most recently added ePaper will always appear as first on the GalleryPage and the order in which they appear is controlled by the order they are added to the page. So if you want to keep an older ePaper as first even when newer ePapers are added this is possible with just two clicks. First you remove the concerned publication from the GalleryPage and then you add it again.