Microsoft Office Tutorials and References
In Depth Information
Copying and Moving Slides from One Presentation to Another
PowerPoint displays both presentations in different window panes in Slide
Drag and drop slides between presentations to copy them.
Click the Save button for any presentation you changed.
Click the Close button in the upper-right corner of the presentation you no
longer want to view.
Click the Maximize button in the upper-right corner of the presentation you
want to keep active.