The Walk Tool lets you explore your scene from a first-person perspective. You can create sets and big environments, and then move through your scene using the Walk Tool's game-like navigation controls. See Walk Tool controls.
When Maya is in walk mode (hotkey: 
+ X), Maya's cursor changes to a multi-directional arrow 
and a heads-up display message appears at the bottom of the viewport.
View > Camera Tools > Walk Tool > 
- Show Walk Tool HUD
- When enabled, a heads-up display (HUD) message appears when the Walk Tool is activated.
- Walk speed multiplier
- Specifies the rate of the walk speed. Adjust the slider to accelerate or decelerate the default walk speeds. See also Control Walk Tool speed.
- Height
- Specifies the distance between the camera and the ground plane.
- Sensitivity multiplier
- Specifies the sensitivity level of the mouse. Increase the Sensitivity multiplier value to make mouse movements, like looking around the scene, quicker.
- Crouch Count
- In crouch mode, the camera moves closer to the ground plane. The Crouch Count specifies how far the camera moves toward this plane.