To add an image to your project, select the project in the left pane, and then click the “+” on the right side of the project.
To upload an image, you can simply drag and drop the image into the box. Alternately, you can choose to browse to the image you wish to add to the Project, and select it.
Once you open the image, you will be moved into the project space with the new image. You can also utilize a web-hosted image by choosing URL and entering a direct image URL