This is only available in PC versions of Power Point (sorry Mac users)
EndNote citations and references can also be inserted in PowerPoint presentations. If you have EndNote installed on your computer, then you should automatically see an EndNote tab when you open Microsoft PowerPoint.
You can search your EndNote Library from within PowerPoint by clicking on either Insert Citation or Insert Reference on the EndNote toolbar.
Alternatively, you can select references in your EndNote Library and then return to PowerPoint to insert your selections by clicking on Insert Selected Citation(s) or Insert Selected Reference(s).
If you do not see the EndNote tab in Power Point, you can make it visible following these steps