1, (Ready): Call up the "Viewport" tool: Place the mouse in the blank space of the shortcut toolbar, click the right mouse button, select "Viewport" from the pop-up menu, and drag it to a suitable position or place it on the edge of the window.

2. Double-click in the layout viewport to make the viewport work in Model Space (at this time, the edge line of the viewport will become thicker). All drawing and editing operations can be performed in the model space of the layout, and the area to be printed can be adjusted to a suitable position. (To return to paper space, you can double-click outside the layout viewport. When you return to paper space, the edge of the viewport will first become a thin line. Note that the layout contains two workspaces: paper space and model space. Don't use it wrong. )

3. After adjusting the printing range, click the ratio of Viewport Tool, select the required printing ratio and confirm.

4. If you don't find the required printing scale, you can add it yourself. Menu: Format-Zoom List.