Resize shapes by dragging the growth handles that look like hollow black squares.
You can rotate any shape using the circular rotate handle to the upper left of the symbol. Simply, click the control and move your mouse. Alternatively, you can use the Rotate controls in the Home tab.
You can even resize any symbol by typing directly into its dimension label. To turn on dimension labels, go to the Dimensions & Area section of your SmartPanel and click on Show Dimensions. Once you see the labels, just click and type. You can be as exact as you want.
Use the grid and rulers to space items accurately. As you move items around on your page, you'll see blue guidelines that show you the distance to the nearest object to help you position things better.
Right-click on the rulers in your drawing area to change the scale units to architectural, metric, or a custom option of your choosing.