When you work with multi-page documents you can quickly switch between pages by pressing the "Page Up" key to advance to next page, and "Page Down" key to return to previous page.
When you are on the first page, pressing "Page Up" (or when you reach last page, pressing "Page Down"), opens the dialog box to insert new pages (before or after the current page).

Tip provided by Silvio Gomes, CorelDRAW Master, Artist and Graphic Designer.