Available from the toolbar, this marvelous tool is used time and time again for seamless tile work, where blending is all important. A sample from the first click [Alt + click for Photoshop] is repeated in the area of a second click by the tool brush. This direction and distance is then set and you paint one area using a sample from another area, indicated by the cross-hair. To change the sample area right click for Corel and Alt + click in Photoshop.

Top left, Photo-Paint Clone tool. Bottom left, Photoshop Rubber Stamp tool. Below, a wayward foot being removed with the Clone tool.