You can change the object by changing its attributes in the attribute dialog box. You might want to do this when you want to be sure of the exact location of the object. You can only change these attributes when the layer is editable. However, you can view the attributes whenever the layer is selectable.
Bounds X1, Y1 and X2, Y2
The lower left (X1, Y1) and upper right (X2, Y2) corners of a boundary rectangle.
Center X, Y
The coordinate values of the rectangle's center.
Style Button
Use this button to access the Symbol Style dialog box.