You can copy and move pages:
Open + Page : open the Page Directory.
Make sure that the Guard button is selected, otherwise pressing a directory button will activate the page, rather than just selecting it.
[Page 1] Copy [Page 3] : copies Page 1 to Page 3.
Similarly, using the command line:
4,Enter : moves Page 2 to Page
The order of the pages in the directory determines which page you get when changing pages using the Next Page key. You can copy and move your pages so that they appear in the correct order for your show. You can then go through the performance using Next Page rather than selecting from the directory.