When you first come into 3D you will have a navigation console to help you move around. Right click the world window to get this menu and click 'Panel' to remove it. With it down you can use the arrow keys on your keyboard to move around.
Select 'Viewpoints' to change where you are within the world
Select 'Movement' to change from walking to flying and so on.
With the same menu you can also change what you see such as solid forms or wire frames, turn on and off your headlight etc. Explore the various menu items to see more.
Using the Navigation Console:1. Click your mouse cursor in the stearing wheel and you will move in the direction the arrow is pointing.
2. Click these arrows to move thru predetermined viewpoints in the world you are in.
3. Click this button to go back to the entry point of the world you are in.
4. Click the left arrow to slide to the left; the right arrow to slide to the right.
5. Click here to collapse the console to a compact red square. If you are used to being in 3D and want to do away with the console then you can click in the 3D window, hold down the left mouse button and drag your cursor in the direction you want to move or use the cursor keys (arrows) on your keyboard.