|Drawing → Insert new drawing → A3 Landscape|
This tool creates a new drawing sheet from already installed templates. Currently, even though the menu and the toolbar allow for A0 to A4 landscape formats, only an A3 Landscape template is available.
A Page object will be added to the Project tree, taking the form of a folder icon. Views that will be created afterward will be placed underneath this folder.
To open the Drawing viewer to display the page, simply double-click on the Page object, or right-click → Show drawing. The page will be opened in a new tab. You can close the tab and open it again at any time the same way.