I cannot get grasp of the tool. All I know it is a great thing to extend objects already distorted by perspective. Once I click on the tool I get four points marked by squares in each corner of my drawing surface and linked by thin lines. I can freely move the lines around. But what has to be done to perform the distortion itself? Should the drawn object be selected? How should be set the cloning direction? A couple of screenshots would be great. Thanks in advance, Gene