first select the rectangle, determine the starting point, and then enter the data, which is please note that the view if pulled out of the mouse next to only show a data, that is the length of the diagonal, you can zoom in or adjust the angle of the graphic, and so the rectangle around the appearance of the two data (that is, the corresponding length and width), and then enter the 100, 300 enter, in the meantime do not click the mouse again. Do not understand hi me