Use the small lever on the left (in red) to alternate
between those two consoles.

The "WALK" console

The "EXPLORE" console
Use it to walk (drag you cursor where you want to go). This one allows you to turn the world around you.
Use it to turn your head in the direction you want. Use it to zoom in the direction you want.
Use it to slide on the right and on the left. Use it to make the world slide in front of you.
Use this list (on the left) to go directly in a defined place in the scene !
Click on it to move your head in the right orientation (gravity).
Click on it, then click on an object: you will go directly in front of it !