User's Guide - Pages
To import one or more pages from a page archive (.pg4) file that you exported:
Use the Open dialog to select the .pg4 file containing the pages you want to import.
Choose where you want the imported pages to be inserted by setting the Insert Imported Pages option to "Before all existing pages", "After all existing pages", "Before the current page" or "After the current page".
Press the Open button to import the pages from the selected file.
Next: Objects