Once the 3D option is enabled, your transformation tools become 3D transformation tools. These tools are found in the Advanced Animation toolbars as well as the Transform tool. Instead of letting you move elements only on the X and Y axes, you can also manipulate them on the Z-axis.
|•||3D Translate Tool|
|•||3D Rotate Tool|
|•||3D Scale Tool|
|•||3D Transform Tool|
|•||Positioning the Scene Components|