Scale Views in Layout Viewports
 
 
 

To turn on scale locking in a layout viewport

  1. In the layout, click the viewport whose scale you want to lock.
  2. If necessary, open the Properties palette.
  3. In the Properties palette, do one of the following:

    The current viewport's scale is locked. If you change the zoom factor in the viewport, only paper space objects are affected.

 Toolbar: Standard 
 Command entry: PROPERTIES
 Shortcut menu: Select the viewport and right-click in the drawing area. Click Properties.