The work area (user interface) > Viewports > Drawlist > Copy a viewport's drawing list
  
Copy a viewport's drawing list
Copying a viewport's drawlist to another viewport is especially useful if you've created a new viewport and you want to display the same objects as those in an existing viewport. Any viewport's drawlist can be copied to another viewport.
1. Open the Structure Browser.
2. Right-click in the Structure Browser and click Drawlist > Copy in the context menu.
3. Specify the source viewport whose drawlist you want to copy.
Creo Elements/Direct Modeling copies the specified viewport's drawing list to the destination viewport.