Canvas X Draw features additional page and layer controls at the bottom of the screen that can be used in addition to the Document Layout palette.
Click the New layer icon.
Another layer is added automatically to that page.
Open the Page menu and select the page that you want to view. You can also use the Page arrows to the left of the Page menu.
Use the Layer controls located to the right of the page & layer controls. If your document contains multiple layers, these controls scroll through the various layers.