This tab helps you to set the size of the diagram. You can change the number of pages in the diagram.
To open this dialog window, please, select Diagram | Diagram Properties from the ribbon-menu, or click on the Properties menu item in diagram's popup menu. Then switch to the Pages tab.
Horizontal Page Count
Horizontal size of the diagram, in pages.
Vertical Page Count
Vertical size of the diagram, in pages.
See also:
Diagram: "General" tab | "Default Database Options" tab | "Preview" tab | "Notes" tab | "Statistics" tab