The Page Navigator (commonly referred to in the interface as the Page Tab Bar or Page Navigation Control) is a foundational UI element located at the bottom left of the MyDraw drawing window. It provides central control for organizing, viewing, and switching between multiple foreground and background pages within a single document. The following image displays a Page Navigator for a drawing with 2 foreground and 1 background page. 

The Page Navigator consists of the following elements:

Page Tabs - contains individual tabs representing each page (e.g., Foreground Page 1, Foreground Page 2 etc.). Clicking a tab instantly activates that page in the drawing view. The active page is highlighted (in the example above - Foreground Page 1). Background pages appear in italics (in the example above - Background Page)

All Dropdown Button - a dedicated button that shows a pop-up context menu, which contains a list of all available pages, allowing for instant jumps in massive multi-page drawing.

Add Button - a button that quickly adds a new empty page with default settings.

When you right-click on a Page Tab, the context menu will be displayed for this page:

It contains the following commands:

Delete - deletes the page.

Rename... - shows the Rename Page dialog, trough which you can rename the page.

Duplicate - creates an exact replica of the page and inserts the new page immediately after the page.

Grid and Rulers... - shows the Grid and Rulers Dialog for the page.

Page Properties... - shows the Page Properties Dialog for the page.

Reorder Pages... - shows the Reorder Pages Dialog, which helps you reorder the pages.