Well, you can copy the image URL and go to that button that says Image, when you put your cursor on it, and you paste the URL in the typing box. Then you press Okay, and then that's it! Or you could save the image to your pictures and then go to the button next to the Image button and press it, then press Choose File and pick the picture. Then press Host It and copy the Image. Paste it. It's sorta confusing. Sorry!