This will give you a picture of a man. Notice where the second arrow is, this is the list of all the pictures you have loaded for this scene. Only the man is loaded now. Click on the button under the first arrow. This will take you to the picture image editor. Click on a blank square. This will take you to a browse window where you can find the image you want to load. You can load as many as you want, but be sure to click on a blank square each time.