Photoshop actions to quick create Facebook grid based cover images. There are a total of 9 actions to create layouts with 3–13 images, but also and to quick place required images. Everything is automated including replacement of already placed images in case you change your mind. 

 

Download link and more details about actions on my blog DesignEasy http://www.designeasy.co/2014/03/free-photoshop-actions-facebook-grid.html